Abu Sebastian

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Distinguished Research Staff Member & Manager
IBM Research - Zurich
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2022

A 64-core mixed-signal in-memory compute chip based on phase-change memory for deep neural network inference
Manuel Le Gallo*, Riduan Khaddam-Aljameh, Milos Stanisavljevic, Athanasios Vasilopoulos, Benedikt Kersting, Martino Dazzi, Geethan Karunaratne, Matthias Braendli, Abhairaj Singh, Silvia M. Mueller, Julian Buechel, Xavier Timoneda, Vinay Joshi, Urs Egger, Angelo Garofalo, Anastasios Petropoulos, Theodore Antonakopoulos, Kevin Brew, Samuel Choi, Injo Ok, Timothy Philip, Victor Chan, Claire Silvestre, Ishtiaq Ahsan, Nicole Saulnier, Vijay Narayanan, Pier Andrea Francese, Evangelos Eleftheriou, Abu Sebastian*
ArXiv, 2022
Abstract

In-memory factorization of holographic perceptual representations
Jovin Langenegger, Geethan Karunaratne, Michael Hersche, Luca Benini, Abu Sebastian*, Abbas Rahimi*
ArXiv, 2022
Abstract

In-memory Realization of In-situ Few-shot Continual Learning with a Dynamically Evolving Explicit Memory
G. Karunaratne, M. Hersche, J. Langenegger, G. Cherubini, M. Le Gallo, U. Egger, K. Brew, S. Choi, I. Ok, C. Silvestre, N. Li, N. Saulnier, V. Chan, I. Ahsan, V. Narayanan, L. Benini, A. Sebastian, A. Rahimi
Proceedings of European Solid-state Devices and Circuits Conference, 2022
Abstract

Optimised weight programming for analogue memory-based deep neural networks
Charles Mackin, Malte J. Rasch, An Chen, Jonathan Timcheck, Robert L. Bruce, Ning Li, Pritish Narayanan, Stefano Ambrogio, Manuel Le Gallo, S. R. Nandakumar, Andrea Fasoli, Jose Luquin, Alexander Friz, Abu Sebastian, Hsinyu Tsai, Geoffrey W. Burr
Nature Communications, 2022
Abstract

Mechanism and Impact of Bipolar Current Voltage Asymmetry in Computational Phase- Change Memory
Syed Ghazi Sarwat, Manuel Le Gallo, Robert L Bruce, Kevin Brew, Benedikt Kersting, Vara Prasad Jonnalagadda, Injo Ok, Nicole Saulnier, Matthew BrightSky, Abu Sebastian
Advanced Materials, 2022
Abstract

An integrated photonics engine for unsupervised correlation detection
Syed Ghazi Sarwat, Frank Brueckerhoff-Pl?ckelmann, Santiago Garc?a-Cuevas Carrillo, Emanuele Gemo, Johannes Feldmann, Harish Bhaskaran, C. David Wright, Wolfram H. P. Pernice, Abu Sebastian
Science Advances, 2022
Abstract

Memristive technologies for data storage, computation, encryption, and radio-frequency communication
Mario Lanza, Abu Sebastian, Wei D. Lu, Manuel Le Gallo, Meng-Fan Chang, Deji Akinwande, Francesco M. Puglisi, Husam N. Alshareef, Ming Liu, Juan B. Roldan
Science, 2022
Abstract

Experimental validation of state equations and dynamic route maps for phase change memristive devices
Francesco Marrone*, Jacopo Secco, Benedikt Kersting, Manuel Le Gallo, Fernando Corinto*, Abu Sebastian*, Leon O. Chua
Scientific Reports, 2022
Abstract

Neuromorphic computing: Challenges from quantum materials to emergent connectivity
Ivan K. Schuller, Alex Frano, R. C. Dynes, Axel Hoffmann, Beatriz Noheda, Catherine Schuman, Abu Sebastian, Jian Shen
Applied Physics Letters, 2022
Abstract

A Neuro-vector-symbolic Architecture for Solving Raven's Progressive Matrices
Michael Hersche, Mustafa Zeqiri, Luca Benini, Abu Sebastian, Abbas Rahimi
ArXiV, 2022
Abstract

Constrained Few-shot Class-incremental Learning
Michael Hersche, Geethan Karunaratne, Giovanni Cherubini, Luca Benini, Abu Sebastian, Abbas Rahimi
Conference on Computer Vision and Pattern Recognition (CVPR), 2022
Abstract

Interconnects for DNA, Quantum, In-Memory and Optical Computing: Insights from a Panel Discussion
Amlan Ganguly, Sergi Abadal, Ishan Thakkar, Natalie Enright Jerger, Marc Riedel, Masoud Babaie, Rajeev Balasubramonian, Abu Sebastian, Sudeep Paricha, Baris Taskin
IEEE Micro, 2022
Abstract

Generalized Key-Value Memory to Flexibly Adjust Redundancy in Memory-Augmented Networks
Denis Kleyko, Geethan Karunaratne, Jan M. Rabaey, Abu Sebastian, Abbas Rahimi
IEEE Transactions on Neural Networks and Learning Systems, 2022
Abstract

HERMES-Core: A 1.59-TOPS/mm2 PCM on 14-nm CMOS In-Memory Compute Core Using 300-ps/LSB Linearized CCO-Based ADCs
Riduan Khaddam-Aljameh, Milos Stanisavljevic, Jordi Fornt Mas, Geethan Karunaratne, Matthias Br?ndli, Feng Liu, Abhairaj Singh, Silvia M. M?ller, Urs Egger, Anastasios Petropoulos, Theodore Antonakopoulos, Kevin Brew, Samuel Choi, Injo Ok, Fee Li Lie, Nicole Saulnier, Victor Chan, Ishtiaq Ahsan, Vijay Narayanan, S. R. Nandakumar, Manuel Le Gallo, Pier Andrea Francese, Abu Sebastian, Evangelos Eleftheriou
IEEE Journal of Solid-State Circuits, 2022
Abstract

Precision of bit slicing with in-memory computing based on analog phase-change memory crossbars
Manuel Le Gallo*, SRNandakumar, Lazar Ciric, IremBoybat, Riduan Khaddam-Aljameh, CharlesMackin, Abu Sebastian*
Neuromorphic Computing and Engineering, 2022
Abstract

MNEMOSENE: Tile Architecture and Simulator for Memristor-based Computation-in-memory
Mahdi Zahedi, Muah Abu Lebdeh, Christopher Bengel, Dirk Wouters, Stephan Menzel, Manuel Le Gallo, Abu Sebastian, Stephan Wong, Said Hamdioui
ACM Journal on Emerging Technologies in Computing Systems, 2022
Abstract

In recent years, we are witnessing a trend toward in-memory computing for future generations of computers that differs from traditional von-Neumann architecture in which there is a clear distinction between computing and memory units. Considering that data movements between the central processing unit (CPU) and memory consume several orders of magnitude more energy compared to simple arithmetic operations in the CPU, in-memory computing will lead to huge energy savings as data no longer needs to be moved around between these units. In an initial step toward this goal, new non-volatile memory technologies, e.g., resistive RAM (ReRAM) and phase-change memory (PCM), are being explored. This has led to a large body of research that mainly focuses on the design of the memory array and its peripheral circuitry. In this article, we mainly focus on the tile architecture (comprising a memory array and peripheral circuitry) in which storage and compute operations are performed in the (analog) memory array and the results are produced in the (digital) periphery. Such an architecture is termed compute-in-memory-periphery (CIM-P). More precisely, we derive an abstract CIM-tile architecture and define its main building blocks. To bridge the gap between higher-level programming languages and the underlying (analog) circuit designs, an instruction-set architecture is defined that is intended to control and, in turn, sequence the operations within this CIM tile to perform higher-level more complex operations. Moreover, we define a procedure to pipeline the CIM-tile operations to further improve the performance. To simulate the tile and perform design space exploration considering different technologies and parameters, we introduce the fully parameterized first-of-its-kind CIM tile simulator and compiler. Furthermore, the compiler is technology-aware when scheduling the CIM-tile instructions. Finally, using the simulator, we perform several preliminary design space explorations regarding the three competing technologies, ReRAM, PCM, and STT-MRAM concerning CIM-tile parameters, e.g., the number of ADCs. Additionally, we investigate the effect of pipelining in relation to the clock speeds of the digital periphery assuming the three technologies. In the end, we demonstrate that our simulator is also capable of reporting energy consumption for each building block within the CIM tile after the execution of in-memory kernels.

2022 roadmap on neuromorphic computing and engineering
Dennis V Christensen, Regina Dittmann, Bernab? Linares-Barranco, Abu Sebastian, Manuel Le Gallo, Andrea Redaelli, Stefan Slesazeck, Thomas Mikolajick, Sabina Spiga, Stephan Menzel, Ilia Valov, Gianluca Milano, Carlo Ricciardi, Shi-Jun Liang, Feng Miao, Mario Lanza, Tyler J Quill, Scott T Keene, Alberto Salleo, Julie Grollier, Danijela Markovi??, Alice Mizrahi, Peng Yao, J Joshua Yang, Giacomo Indiveri, John Paul Strachan, Suman Datta, Elisa Vianello, Alexandre Valentian, Johannes Feldmann, Xuan Li, Wolfr
Neuromorphic Computing and Engineering, 2022
Abstract

Modern computation based on the von Neumann architecture is today a mature cutting-edge science. In the Von Neumann architecture, processing and memory units are implemented as separate blocks interchanging data intensively and continuously. This data transfer is responsible for a large part of the power consumption. The next generation computer technology is expected to solve problems at the exascale with 1018 calculations each second. Even though these future computers will be incredibly powerful, if they are based on von Neumann type architectures, they will consume between 20 and 30 megawatts of power and will not have intrinsic physically built-in capabilities to learn or deal with complex data as our brain does. These needs can be addressed by neuromorphic computing systems which are inspired by the biological concepts of the human brain. This new generation of computers has the potential to be used for the storage and processing of large amounts of digital information with much lower power consumption than conventional processors. Among their potential future applications, an important niche is moving the control from data centers to edge devices. The aim of this Roadmap is to present a snapshot of the present state of neuromorphic technology and provide an opinion on the challenges and opportunities that the future holds in the major areas of neuromorphic technology, namely materials, devices, neuromorphic circuits, neuromorphic algorithms, applications, and ethics. The Roadmap is a collection of perspectives where leading researchers in the neuromorphic community provide their own view about the current state and the future challenges for each research area. We hope that this Roadmap will be a useful resource by providing a concise yet comprehensive introduction to readers outside this field, for those who are just entering the field, as well as providing future perspectives for those who are well established in the neuromorphic computing community.

Phase-change memtransistive synapses for mixed-plasticity neural computations
Syed Ghazi Sarwat*, Benedikt Kersting, Timoleon Moraitis, Vara Prasad Jonnalagadda and Abu Sebastian*
Nature Nanotechnology, 2022
Abstract

2021

AnalogNets: ML-HW Co-Design of Noise-robust TinyML Models and Always-On Analog Compute-in-Memory Accelerator
Chuteng Zhou, Fernando Garcia Redondo, Julian Buechel, Irem Boybat, Xavier Timoneda Comas, S. R. Nandakumar, Shidhartha Das, Abu Sebastian, Manuel Le Gallo, Paul N. Whatmough
ArXiv, 2021
Abstract

Projected Mushroom Type Phase-Change Memory
Syed Ghazi Sarwat, Timothy M. Philip, Ching-Tzu Chen, Benedikt Kersting, Robert L. Bruce, Cheng-Wei Cheng, Ning Li, Nicole Saulnier, Matthew BrightSky, Abu Sebastian
Advanced Functional Materials, 2021
Abstract

Ohm's Law+ Kirchhoff's Current Law= Better AI: Neural-Network Processing Done in Memory with Analog Circuits will Save Energy
Geoffrey W. Burr, Abu Sebastian, Takashi Ando, Wilfried Haensch
IEEE Spectrum, 2021
Abstract

Measurement of Onset of Structural Relaxation in Melt-Quenched Phase Change Materials
Benedikt Kersting, Syed Ghazi Sarwat, Manuel Le Gallo, Kevin Brew, Sebastian Walfort, Nicole Saulnier, Martin Salinga, Abu Sebastian
Advanced Functional Materials, 2021
Abstract

Accelerating Inference of Convolutional Neural Networks using In-Memory Computing
Martino Dazzi, Abu Sebastian, Luca Benini, Evangelos Eleftheriou
Frontiers in Computational Neuroscience, 2021
Abstract

Robust high-dimensional memory-augmented neural networks
Geethan Karunaratne, Manuel Schmuck, Manuel Le Gallo, Giovanni Cherubini, Luca Benini, Abu Sebastian, Abbas Rahimi
Nature Communications, 2021
Abstract

A Flexible and Fast PyTorch Toolkit for Simulating Training and Inference on Analog Crossbar Arrays
Malte J. Rasch, Diego Moreda, Tayfun Gokmen, Manuel Le Gallo, Fabio Carta, Cindy Goldberg, Kaoutar El Maghraoui, Abu Sebastian, Vijay Narayanan
IEEE International Conference on Artificial Intelligence Circuits and Systems, 2021
Abstract

Parallel convolutional processing using an integrated photonic tensor core
J. Feldmann, N. Youngblood, M. Karpov, H. Gehring, X. Li, M. Stappers, M. Le Gallo, X. Fu, A. Lukashchuk, A. S. Raja, J. Liu, C. D. Wright, A. Sebastian*, T. J. Kippenberg*, W. H. P. Pernice*, H. Bhaskaran*
Nature589, 52-58, 2021
Abstract

Energy Efficient In-Memory Hyperdimensional Encoding for Spatio-Temporal Signal Processing
Geethan Karunaratne, Manuel Le Gallo, Michael Hersche, Giovanni Cherubini, LucaBenini, Abu Sebastian, Abbas Rahimi
IEEE Transactions on Circuits and Systems II: Express Briefs, 2021
Abstract

HERMES Core -- A 14nm CMOS and PCM-based In-Memory Compute Core using an array of 300ps/LSB Linearized CCO-based ADCs and local digital processing
R. Khaddam-Aljameh, M. Stanisavljevic, J. Fornt Mas, G. Karunaratne, M. Braendli, F. Liu, A. Singh, S. M. Mueller, U. Egger, A. Petropoulos, T. Antonakopoulos, K. Brew, S. Choi, I. Ok, F. L. Lie, N. Saulnier, V. Chan, I. Ahsan, V. Narayanan, S. R. Nandakumar, M. Le Gallo, P. A. Francese, A. Sebastian, E. Eleftheriou
Symposium on VLSI Circuits, 2021
Abstract

Accurate weight mapping in a multi-memristive synaptic unit
M. Martemucci, B. Kersting, R. Khaddam-Aljameh, I. Boybat, S. R. Nandakumar, U. Egger, M. Brightsky, R. L. Bruce, M. Le Gallo, A. Sebastian
IEEE International Symposium on Circuits and Systems (ISCAS), 2021
Abstract

Mushroom-type phase change memory with projection liner: an array-level demonstration of conductance drift and noise mitigation
R. L. Bruce, S. Ghazi Sarwat, I. Boybat, C.-W. Cheng, W. Kim, S. R. Nandakumar, C. Mackin, T. Philip, Z. Liu, K. Brew, N. Gong, I. Ok, P. Adusumilli, K. Spoon, S. Ambrogio, B. Kersting, T. Bohnstingl, M. Le Gallo, A. Simon, N. Li, I. Saraf, J.-P. Han, L. Gignac, J.M. Papalia, T. Yamashita, N. Saulnier, G. W. Burr, H. Tsai, A. Sebastian, V. Narayanan, and M. BrightSky
IEEE International Reliability Physics Symposium (IRPS), 2021
Abstract

Architecting More Than Moore - Wireless Plasticity for Massive Heterogeneous Computer Architectures (WiPLASH)
J. Klein, M. Zapater, A. Levisse, G. Ansaloni, D. Atienza, D. Rossi, F. Conti, M. Dazzi, G. Karunaratne, I. Boybat, A. Sebastian, E. Pereira de Santana, P. Haring Bolivar, M. Saeed, R. Negra, Z. Wang, K.-T. Wang, M. C. Lemme, A. Jain, R. Guirado, H. Taghvaee, S. Abadal
ACM International Conference on Computing Frontiers (CF), 2021
Abstract

Efficient pipelined execution of CNNs based on in-memory computing and graph homomorphism verification
Martino Dazzi, Abu Sebastian, Thomas Parnell, Pier Andrea Francese, Luca Benini, Evangelos Eleftheriou
IEEE Transactions on Computers, 2021
Abstract

2020

Precision of synaptic weights programmed in phase-change memory devices for deep learning inference
SR Nandakumar, Irem Boybat, Jin-Ping Han, Stefano Ambrogio, Praneet Adusumilli, Robert L Bruce, Matthew BrightSky, Malte Rasch, Manuel Le Gallo, Abu Sebastian
International Electron Devices Meeting (IEDM), 2020
Abstract

On-chip Phase Change Optical Matrix Multiplication Core
Xuan Li, Nathan Youngblood, Wen Zhou, Johannes Feldmann, Jacob Swett, Samarth Aggarwal, A Sebastian, C David Wright, Wolfram Pernice, Harish Bhaskaran
International Electron Devices Meeting (IEDM), 2020
Abstract

In-memory database query
I. Giannopoulos*, A. Singh, M. Le Gallo, V. P. Jonnalagadda, S. Hamdioui, A. Sebastian*
Advanced Intelligent Systems, 2020
Abstract

Memristors: From In-Memory Computing, Deep Learning Acceleration, and Spiking Neural Networks to the Future of Neuromorphic and Bio-Inspired Computing
Adnan Mehonic, Abu Sebastian, Bipin Rajendran, Osvaldo Simeone, Eleni Vasilaki, and Anthony J. Kenyon
Advanced Intelligent Systems, 2000085 , 2020
Abstract

In-memory hyperdimensional computing
Geethan Karunaratne, Manuel Le Gallo, Giovanni Cherubini, Luca Benini, Abbas Rahimi*, Abu Sebastian*
Nature Electronics, 2020
Abstract

Experimental Demonstration of Supervised Learning in Spiking Neural Networks with Phase-Change Memory Synapses
S. R. Nandakumar, Irem Boybat, Manuel Le Gallo, Evangelos Eleftheriou, Abu Sebastian*, Bipin Rajendran*
Scientific Reports, 2020
Abstract

State dependence and temporal evolution of resistance in projected phase change memory
Benedikt Kersting*, Vladimir Ovuka, Vara Prasad Jonnalagadda, Marilyne Sousa, Valeria Bragaglia, Syed Ghazi Sarwat, Manuel Le Gallo, Martin Salinga & Abu Sebastian*
Scientific Reports, 2020
Abstract

Accurate deep neural network inference using computational phase-change memory
Vinay Joshi, Manuel Le Gallo*, Simon Haefeli, Irem Boybat, S. R. Nandakumar, Christophe Piveteau, Martino Dazzi, Bipin Rajendran, Abu Sebastian*, Evangelos Eleftheriou
Nature Communications, 2020
Abstract

Emerging materials in neuromorphic computing: Guest editorial
Geoffrey W. Burr, Abu Sebastian, Elisa Vianello, Rainer Waser, Stuart Parkin
APL Materials, 2020
Abstract

Memory devices and applications for in-memory computing
Abu Sebastian, Manuel Le Gallo, Riduan Khaddam-Aljameh, Evangelos Eleftheriou
Nature Nanotechnology, 2020
Abstract

Compiling Neural Networks for a Computational Memory Accelerator
Kornilios Kourtis, Martino Dazzi, Nikolas Ioannou, Tobias Grosser, Abu Sebastian, Evangelos Eleftheriou
Proceedings of 10th Workshop on Systems for Post-Moore Architectures (SPMA 2020)
Abstract

An overview of phase-change memory device physics
Manuel Le Gallo, Abu Sebastian
Journal of Physics D: Applied Physics, 2020
Abstract

Parallel convolution processing using an integrated photonic tensor core
Johannes Feldmann, Nathan Youngblood, Maxim Karpov, Helge Gehring, Xuan Li, Manuel Le Gallo, Xin Fu, Anton Lukashchuk, Arslan Raja, Junqiu Liu, David Wright, Abu Sebastian*, Tobias Kippenberg*, Wolfram Pernice*, Harish Bhaskaran*
ArXiv, 2020
Abstract

Mixed-precision deep learning based on computational memory
S. R. Nandakumar, Manuel Le Gallo, Christophe Piveteau, Vinay Joshi, Giovanni Mariani, Irem Boybat, Geethan Karunaratne, Riduan Khaddam-Aljameh, Urs Egger, Anastasios Petropoulos, Theodore Antonakopoulos, Bipin Rajendran*, Abu Sebastian*, Evangelos Eleftheriou*
Frontiers in Neuroscience, 2020
Abstract

ESSOP: Efficient and Scalable Stochastic Outer Product Architecture for Deep Learning
Vinay Joshi, Geethan Karunaratne, Manuel Le Gallo, Irem Boybat, Christophe Piveteau, Abu Sebastian, Bipin Rajendran, Evangelos Eleftheriou
IEEE International Symposium on Circuits and Systems (ISCAS), 2020
Abstract

Accurate Emulation of Memristive Crossbar Arrays for in-Memory Computing
Anastasios Petropoulos, Irem Boybat, Manuel Le Gallo, Evangelos Eleftheriou, Abu Sebastian, Theodore Antonakopoulos
IEEE International Symposium on Circuits and Systems (ISCAS), 2020
Abstract

File Classification Based on Spiking Neural Networks
Ana Stanojevic, Giovanni Cherubini, Timoleon Moraitis, Abu Sebastian
IEEE International Symposium on Circuits and Systems (ISCAS), 2020
Abstract

2019

Phase-change memory models for deep learning training and inference
SR Nandakumar, Irem Boybat, Vinay Joshi, Christophe Piveteau, Manuel Le Gallo, Bipin Rajendran, Abu Sebastian, Evangelos Eleftheriou
Proceedings of International Conference on Electronics, Circuits and Systems (ICECS) , 2019
Abstract

Deep learning acceleration based on in-memory computing
Evangelos Eleftheriou, Manuel Le Gallo, S. R. Nandakumar, Christophe Piveteau, Irem Boybat, Vinay Joshi, Riduan Khaddam-Aljameh, Martino Dazzi, Iason Giannopoulos, Geethan Karunaratne, Benedikt Kersting, Milos Stanisavljevic, Varaprasad Jonnalagadda, Nikolas Ioannou, Kornelious Kourtis, Pier Andrea Francese, Abu Sebastian
IBM Journal of Research and Development 63(6), 2019
Abstract

Computational phase-change memory: beyond von Neumann computing
Abu Sebastian, Manuel Le Gallo, Evangelos Eleftheriou
Journal of Physics D: Applied Physics, 2019
Abstract

5 Parallel Prism: A topology for pipelinedimplementations of convolutional neural networksusing computational memory
Martino Dazzi, Abu Sebastian, Pier Andrea Francese, Thomas Parnell, Luca Benini, Evangelos Eleftheriou
MLSys Workshop on Systems for ML, NeurIPS 2019
Abstract

Localised states and their capture characteristics in amorphous phase-change materials
Martin Ruetten, Andreas Geilen, Abu Sebastian, Daniel Krebs, Martin Salinga
Nature Scientific Reports, 2019
Abstract

Training Neural Networks using Memristive Devices with Nonlinear Accumulative Behavior
Christophe Piveteau*, Manuel Le Gallo, Riduan Khaddam-Aljameh, Abu Sebastian*
Proc. International Memory Workshop, 2019
Abstract

Building next-generation AI systems: Co-optimization of Algorithms, Architectures, and Nanoscale Memristive Devices
Bipin Rajendran, Abu Sebastian, and Evangelos Eleftheriou
Proc. International Memory Workshop, 2019
Abstract

Reliability Challenges with Materials for Analog Computing
Eduard A. Cartier, Wanki Kim, Nanbo Gong, Tayfun Gokmen, Martin M. Frank, Douglas M. Bishop, Youngseok Kim, Seyoung Kim, Takashi Ando, Ernest Y. Wu, Praneet Adusumilli, John Rozen, Paul M. Solomon, Wilfried Haensch, Matthew J. BrightSky, Abu Sebastian, Geoffrey W. Burr, Vijay Narayanan
Proc. IRPS, 2019
Abstract

Multi-ReRAM synapses for artificial neural network training
Irem Boybat*, Cecilia Giovinazzo, Elmira Shahrabi, Igor Krawczuk, Iason Giannopoulos, Christophe Piveteau, Manuel Le Gallo, Carlo Ricciardi, Abu Sebastian*, Evangelos Eleftheriou, Yusuf Leblebici
Proc. ISCAS, 2019
Abstract

Computational memory-based inference and training of deep neural networks
Abu Sebastian*, Irem Boybat, Martino Dazzi, Iason Giannopoulos, Varaprasad Jonnalagadda, Vinay Joshi, Geethan Karunaratne, Benedikt Kersting, Riduan Khaddam-Aljameh, S. R. Nandakumar, Anastasios Petropoulos, Christophe Piveteau, Theodore Antonakopoulos, Bipin Rajendran, Manuel Le Gallo, Evangelos Eleftheriou
Proc. VLSI Symposium, 2019
Abstract

In-memory computing on a photonic platform
Carlos Rios, Nathan Youngblood, Zengguang Cheng, Manuel Le Gallo, Wolfram H. P. Pernice, C. David Wright, Abu Sebastian*, Harish Bhaskaran*
Science Advances 5(2), 2019
Abstract

Applications of Computation-In-Memory Architectures based on Memristive Devices
Said Hamdioui, Abu Sebastian, Sandeep Pande, Shidhartha Das, Geethan Karunaratne, Hoang Anh Du Nguyen, Manuel Le Gallo et al.
Proceedings of DATE, 2019
Abstract

2018

Tutorial: Brain-inspired computing using phase-change memory devices
Abu Sebastian*, Manuel Le Gallo, Geoffrey W. Burr, Sangbum Kim, Matthew BrightSky, and Evangelos Eleftheriou
Journal of Applied Physics 124(11), 111101, 2018
Abstract

Compressed Sensing With Approximate Message Passing Using In-Memory Computing
M. Le Gallo*, A. Sebastian*, G. Cherubini, H. Giefers, E. Eleftheriou
IEEE Transactions on Electron Devices 65(10), 4304, 2018
Abstract

Neuromorphic computing with multi-memristive synapses
Irem Boybat*, Manuel Le Gallo, S.R. Nandakumar, Timoleon Moraitis, Thomas Parnell, Tomas Tuma, Bipin Rajendran, Yusuf Leblebici, Abu Sebastian*, Evangelos Eleftheriou
Nature Communications 9(2514), 2018
Abstract

Collective structural relaxation in phase-change memory devices
Manuel Le Gallo*, Daniel Krebs, Federico Zipoli, Martin Salinga, Abu Sebastian*
Advanced Electronics Materials, 1700627, 2018
Abstract

The role of short-term plasticity in neuromorphic learning
Timoleon Moraitis*, Abu Sebastian*, Evangelos Eleftheriou
IEEE Nanotechnology Magazine 12(3), 45-53, 2018

Monatomic phase change memory
Martin Salinga*, Benedikt Kersting, Ider Ronneberger, Vara Prasad Jonnalagadda, Xuan Thang Vu, Manuel Le Gallo, Iason Giannopoulos, Oana Cojocaru-Miredin, Riccardo Mazzarello, Abu Sebastian*
Nature Materials17, 681-685, 2018
Abstract

Signal and noise extraction from analog memory elements for neuromorphic computing
N. Gong, T. Ide, S. Kim, I. Boybat, A. Sebastian, V. Narayanan, T. Ando
Nature Communications 9(2102), 2018
Abstract

Spiking neural networks enable two-dimensional neurons and unsupervised multi-timescale learning
Timoleon Moraitis*, Abu Sebastian*, Evangelos Eleftheriou
International Joint Conference on Neural Networks (IJCNN), 2018
Abstract

Mixed-precision in-memory computing
Manuel Le Gallo*, Abu Sebastian*, Roland Mathis, Matteo Manica, Heiner Giefers, Tomas Tuma, Costas Bekas, Alessandro Curioni, Evangelos Eleftheriou
Nature Electronics1, 246-253, 2018
Abstract

Signal and noise extraction from non-volatile memory for neuromorphic computing: A machine learning based approach
T. Ando, N. Gong, T. Ide, S. Kim, I. Boybat, A. Sebastian, V. Narayanan
Neuro Inspired Computational Elements Workshop (NICE), 2018

Exploiting the non-linear current-voltage characteristics for resistive memory readout
Nikolaos Papandreou, Abu Sebastian, Haralampos Pozidis
The International Symposium on Circuits and Systems (ISCAS) , 2018
Abstract

Mixed-precision architecture based on computational memory for training deep neural networks
Nandakumar S. R.*, Manuel Le Gallo, Irem Boybat, Bipin Rajendran, Abu Sebastian*, Evangelos Eleftheriou
The International Symposium on Circuits and Systems (ISCAS) , 2018
Abstract

2017

Compressed Sensing Recovery using Computational Memory
M. Le Gallo*, A. Sebastian*, G. Cherubini, H. Giefers, and E. Eleftheriou
Proc. IEEE International Electron Devices Meeting, 2017
Abstract

Memristive Effects in Oxygenated Amorphous Carbon Nanodevices
T. A. Bachmann, W. W. Koelmans, V. P. Jonnalagadda, M. Le Gallo, C. A. Santini, A. Sebastian, E. Eleftheriou, M. F. Craciun, C. D. Wright
Nanotechnology, 2017
Abstract

Temporal correlation detection using computational phase-change memory
Abu Sebastian*, Tomas Tuma, Nikolaos Papandreou, Manuel Le Gallo, Lukas Kull, Thomas Parnell, Evangelos Eleftheriou
Nature Communications, 2017
Abstract

Supervised Learning in Spiking Neural Networks with MLC PCM Synapses
S. R. Nandakumar, I. Boybat, M. Le Gallo, A. Sebastian*, B. Rajendran*, and E. Eleftheriou
75th Device Research Conference, 2017
Abstract

Stochastic weight updates in phase-change memory-based synapses and their influence on artificial neural networks
Irem Boybat*, Manuel Le Gallo, Timoleon Moraitis, Yusuf Leblebici, Abu Sebastian*, and Evangelos Eleftheriou
13th Conference on PhD Research in Microelectronics and Electronics (PRIME 2017)
Abstract

Fatiguing STDP: Learning from Spike-Timing Codes in the Presence of Rate Codes
Timoleon Moraitis*, Abu Sebastian*, Irem Boybat, Manuel Le Gallo, Tomas Tuma, and Evangelos Eleftheriou
International Joint Conference on Neural Networks (IJCNN 2017)
Abstract

Flux-Charge Memristor Model for Phase Change Memory
Jacopo Secco, Fernando Corinto, Abu Sebastian
IEEE Transactions on Circuits and Systems II: Express Briefs, 2017
Abstract

2016

Joule heating effects in nanoscale carbon-based memory devices
TA Bachmann, AM Alexeev, WW Koelmans, F Zipoli, AK Ott, C Dou, AC Ferrari, VK Nagareddy, MF Craciun, VP Jonnalagadda, A Curioni, A Sebastian, E Eleftheriou, CD Wright
IEEE Nanotechnology Materials and Devices Conference (NMDC), 2016

Neuromorphic computing using non-volatile memory
Geoff Burr et al.
Advances in Physics: X, 2016
Abstract

Multi-level storage in phase-change memory devices
Abu Sebastian, Manuel Le Gallo, Wabe Koelmans, Nikolaos Papandreou, Haris Pozidis, Evangelos Eleftheriou
Proceedings of the European symposium on Phase-Change and Ovonic Sciences (EPCOS), 2016
Abstract

Detecting Correlations Using Phase-Change Neurons and Synapses
Tomas Tuma, Manuel Le Gallo, Abu Sebastian, Evangelos Eleftheriou
IEEE Electron Device Letters, 2016
Abstract

Recent Progress in Phase-Change Memory Technology
Geoffrey W. Burr, Matthew J. Brightsky, Abu Sebastian, Huai-Yu Cheng, Jau-Yi Wu, Sangbum Kim, Norma E. Sosa, Nikolaos Papandreou, Hsiang-Lan Lung, Haralampos Pozidis, Evangelos Eleftheriou, Chung H. Lam
IEEE Journal on Emerging and Selected Topics in Circuits and Systems, 2016
Abstract

Carbon-based resistive memories
W. W. Koelmans, T. Bachmann, F. Zipoli, A. K. Ott, C. Dou, A. C. Ferrari, O. Cojocaru-Miredin, S. Zhang, M. Wuttig, V. K. Nagareddy, M. F. Craciun, A. Alexeev, C. D. Wright, V. P. Jonnalagadda, A. Curioni, A. Sebastian, E. Eleftheriou
International Memory Workshop (IMW), 2016
Abstract

The complete time/temperature dependence of I-V drift in PCM devices
Manuel Le Gallo, Abu Sebastian, Daniel Krebs, Milos Stanisavljevic and Evangelos Eleftheriou
Proceedings of the International Reliability Physics Symposium (IRPS), 2016
Abstract

Probing the micromechanics of the fastest growing plant cell - The pollen tube
Naveen Shamsudhin, Huseyin Baris Atakan, Nino Läubli, Hannes Vogler, Chengzhi Hu, Abu Sebastian, Ueli Grossniklaus and Bradley J. Nelson
Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC'16), 2016
Abstract

Stochastic phase change neurons
Tomas Tuma, Angeliki Pantazi, Manuel Le Gallo, Abu Sebastian, Evangelos Eleftheriou
Nature Nanotechnology, 2016
Abstract

Evidence for thermally assisted threshold switching behavior in nanoscale phase-change memory cells
Manuel Le Gallo, Aravinthan Athmanathan, Daniel Krebs, and Abu Sebastian
Journal of Applied Physics119, 025704, 2016
Abstract

Inherent stochasticity in phase-change memory devices
Manuel Le Gallo, Tomas Tuma, Federico Zipoli, Abu Sebastian, Evangelos Eleftheriou
European Solid-State Device Conference (ESSDERC), 2016
Abstract

2015

High-field electrical transport in amorphous phase-change materials
Matthias Kaes, Manuel Le Gallo, Abu Sebastian, Martin Salinga, Daniel Krebs
Journal of Applied Physics118, 135707, 2015
Abstract

Oxygenated amorphous carbon for resistive memory applications
Claudia A. Santini, Abu Sebastian, Chiara Marchiori, Vara Prasad Jonnalagadda, Laurent Dellmann, Wabe W. Koelmans, Marta D. Rossell, Christophe P. Rossel, Evangelos Eleftheriou
Nature Communications 6(8600), 2015
Abstract

Subthreshold Electrical Transport in Amorphous Phase-Change Materials
Manuel Le Gallo, Matthias Kaes, Abu Sebastian, and Daniel Krebs
New Journal of Physics17, 093035, 2015
Abstract

A Finite-Element Thermoelectric Model for Phase-Change Memory Devices
Aravinthan Athmanathan, Daniel Krebs, Abu Sebastian, Manuel Le Gallo, Haralampos Pozidis and Evangelos Eleftheriou
The International Conference on Simulation of Semiconductor Processes and Devices (SISPAD), 2015
Abstract

Accumulation-based computing using phase change memories with FET access devices
Peiman Hosseini, Abu Sebastian, Nikolaos Papandreou, C. David Wright, Harish Bhaskaran
IEEE Electron Device Letters 36(9), 975-977, 2015
Abstract

Evidence for Thermally-Assisted Threshold Switching Behavior in Nanoscale Phase-Change Memory Cells
Manuel Le Gallo, Abu Sebastian and Daniel Krebs
Materials Research Society Bulleting (MRS Spring Meeting), 2015
Abstract

A Collective Relaxation Model for Resistance Drift in Phase Change Memory Cells
Abu Sebastian, Daniel Krebs, Manuel Le Gallo, Haralampos Pozidis and Evangelos Eleftheriou
Proceedings of the International Reliability Physics Symposium (IRPS), 2015
Abstract

Projected phase-change memory devices
Wabe W. Koelmans, Abu Sebastian, Vara Prasad Jonnalagadda, Daniel Krebs, Laurent Dellmann, Evangelos Eleftheriou
Nature Communications6, 2015
Abstract

2014

The paradigm shift in computing
Abu Sebastian
Technology and Future, 2014

Subthreshold Conduction in Amorphous Phase-Change Materials
Manuel Le Gallo, Daniel Krebs, Matthias Kaes and Abu Sebastian
E/PCOS , 2014

Probing the crystal growth velocity of melt-quenched phase change materials within a memory cell
Abu Sebastian, Manuel Le Gallo and Daniel Krebs
MRS Spring Meeting, 2014

Crystal growth within a phase change memory cell
Abu Sebastian, Manuel Le Gallo and Daniel Krebs
Nature Communications 5(4314), 1-9, Nature, 2014
Abstract

A high-bandwidth spintronic position sensor
Tomas Tuma, Angeliki Pantazi, Deepak R. Sahoo, Philipp Eib, Gian Salis, Haris Pozidis and Abu Sebastian
Nanotechnology 25(37), 375501, IOP Publishing, 2014

Amorphous Carbon Oxide for Resistive Memory Applications
Claudia A. Santini, Abu Sebastian, Chiara Marchiori, Vara P. Jonnalagadda, Laurent Dellmann, Wabe Koelmans, Christophe Rossel, Evangelos Eleftheriou
E-MRS 2014 Spring Meeting

Relaxation in Phase Change Memory Cells
Daniel Krebs, Abu Sebastian and Federico Zipoli
Materials Research Society Spring Meeting, 2014

Multi-frequency atomic force microscopy: A system-theoretic approach
Naveen Shamsudhin, Hugo Rothuizen, Bradley J. Nelson and Abu Sebastian
Proceedings of the IFAC World Congress, 2014

Amorphous carbon active contact layer for reliable nanoelectromechanical switches
Daniel Grogg, Christopher L. Ayala, Ute Drechsler, Abu Sebastian, Wabe W. Koelmans, Simon J. Bleiker, Montserrat Fernandez-Bolanos, Christoph Hagleitner, Michel Despont and Urs T. Duerig
Proceedings of the IEEE MEMS 2014, pp. 143--146

Dual-Stage Nanopositioning for High-Speed Scanning Probe Microscopy
Tomas Tuma, Walter Haeberle, Hugo Rothuizen, John Lygeros, Angeliki Pantazi and Abu Sebastian
IEEE Transactions on Mechatronics 19(3), 1035-1045, IEEE, 2014
Abstract

2013

The four pillars of nanopositioning for scanning probe microscopy
Tomas Tuma, Abu Sebastian, John Lygeros and Angeliki Pantazi
IEEE Control Systems 33(6), 2013

Compact Electro-Thermal Model for Thermal Cross-talk Analysis in PCM Arrays
Aravinthan Athmanathan, Abu Sebastian, Daniel Krebs, Milos Stanisavljevic, Yusuf Leblebici and Evangelos Eleftheriou
European Phase Change and Ovonics Symposium (E\PCOS), 2013

Nonvolatile resistive memory devices based on hydrogenated amorphous carbon
L. Dellmann, A. Sebastian, P. Jonnalagadda, C. A. Santini, W. W. Koelmans, C. Rossel and E. Eleftheriou
43rd European Solid-State Device Research Conference, pp. 268--271, 2013

Analysis and design of multiresolution scan trajectories for high-speed scanning probe microscopy
Tomas Tuma, John Lygeros, Abu Sebastian and Angeliki Pantazi
IFAC symposium on mechatronic systems, pp. 138--144, 2013

Reliable MLC data storage and retention in phase-change memory after endurance cycling
H. Pozidis, N. Papandreou, A. Sebastian, T. Mittelholzer, M. BrightSky, C. Lam, E. Eleftheriou
IEEE International Memory Workshop (IMW), pp. 100-103, 2013

A high-speed electromagnetically-actuated scanner for dual-stage nanopositioning
Tomas Tuma, Walter Haeberle, Hugo Rothuizen, John Lygeros, Angeliki Pantazi and Abu Sebastian
IFAC symposium on mechatronic systems, pp. 125--130, 2013

Topography estimation in contact-mode AFM using a high-bandwidth position sensor
Dimitrios Felekis, Tomas Tuma, Walter Haeberle, Brad Nelson, Angeliki Pantazi and Abu Sebastian
International Scanning Probe Microscopy Conference, 2013

A hybrid control approach to nanopositioning
Tomas Tuma, Abu Sebastian, John Lygeros, Angeliki Pantazi
Smart Materials-Based Actuators at the Micro/Nano-Scale, pp. 89--120, Springer, 2013

2012

Micro-cantilevers with AlN actuators and PtSi tips for multi-frequency atomic force microscopy
Abu Sebastian, Naveen Shamsudhin, Hugo Rothuizen, Ute Drechsler, Wabe W. Koalmans, Harish Bhaskaran, Hans Joachim Quenzer, Bernhard Wagner and Michel Despont
Review of Scientific Instruments83, 096107, 2012
Abstract

Optimal scan trajectories for high-speed scanning probe microscopy
T. Tuma, J. Lygeros, A. Sebastian, A. Pantazi
American Control Conf., Montreal, 2012

Micro-cantilever design and modeling framework for quantitative multi-frequency AFM
N. Shamsudhin, H. Rothuizen, M. Despont, J. Lygeros, A. Sebastian
IEEE Nanotechnology Conf., Birmingham, pp. 1--5, 2012

A dual-stage nanopositioning approach to high-speed scanning probe microscopy
T. Tuma, W. Haeberle, H. Rothuizen, J. Lygeros, A. Pantazi and A. Sebastian
IEEE Conf. on Decision and Control, 2012

High-bandwidth nanopositioner with magnetoresistance based position sensing
Venkataraman Kartik, Abu Sebastian, Tomas Tuma, Angeliki Pantazi, Haralampos Pozidis, Deepak R. Sahoo
Mechatronics, 2012

Nanopositioning With Impulsive State Multiplication: A Hybrid Control Approach
T. Tuma, A. Pantazi, J. Lygeros, A. Sebastian
IEEE Transactions on Control Systems Technology 21(99), 1352--1364, , 2012

High-speed multiresolution scanning probe microscopy based on Lissajous scan trajectories
Tomas Tuma, John Lygeros, V Kartik, Abu Sebastian, Angeliki Pantazi
Nanotechnology 23(18), 185501, IOP Publishing, 2012

Nanopositioning With Multiple Sensors: A Case Study in Data Storage
A. Sebastian, A. Pantazi
Control Systems Technology, IEEE Transactions on 20(2), 382-394, IEEE, 2012

Comparison of two non-linear control approaches to fast nanopositioning: impulsive control and signal transformation
Tomas Tuma, Angeliki Pantazi, John Lygeros and Abu Sebastian
Mechatronics, 2012

High-bandwidth nanopositioner with magnetoresistance based position sensing
V. Kartik, A. Sebastian, T. Tuma, A. Pantazi, H. Pozidis, D.R. Sahoo
Mechatronics 22(3), 295-301, Elsevier, 2012

Editorial: Special issue on "Mechatronic systems for micro- and nanoscale applications"
G. Schitter, A. Sebastian
Mechatronics, Elsevier, 2012

Comparison of two non-linear control approaches to fast nanopositioning: Impulsive control and signal transformation
Tomas Tuma, Angeliki Pantazi, John Lygeros, Abu Sebastian
Mechatronics 22(3), 302--309, Elsevier, 2012

A framework for reliability assessment in multilevel phase-change memory
H. Pozidis, N. Papandreou, A. Sebastian, T. Mittelholzer, M. BrightSky, C. Lam, E. Eleftheriou
IEEE International Memory Workshop (IMW), pp. 1--4, 2012

2011

Platinum silicide probes: A novel approach to manufacture highly conductive AFM probes with small radii and high wear resistance
Oliver Krause, Abu Sebastian and Michel Despont
International scanning probe microscopy meeting (ISPM), Munich, Germany, 2011

Electrical transport and resistance switching in amorphous carbon at the nanometer scale
Abu Sebastian, Andrew Pauza, Christophe Rossel, Robert M. Shelby, Arantxa F. Rodriguez, Haralampos Pozidis and Evangelos. Eleftheriou
Swiss Physical Society annual meeting, Lausanne, Switzerland, 2011

Tracking of triangular references using signal transformation for control of a novel AFM scanner stage
A. Bazaei, Y.K. Yong, S.O.R. Moheimani, A. Sebastian
Control Systems Technology, IEEE Transactions on pp. 99, 1-12, IEEE, 2011

An analysis of signal transformation approach to triangular waveform tracking
A. Bazaei, SO Reza Moheimani, A. Sebastian
Automatica, Elsevier, 2011

High-Bandwidth Intermittent-Contact Mode Scanning Probe Microscopy Using Electrostatically-Actuated Microcantilevers
Deepak R. Sahoo, Walter Haeberle, Abu Sebastian, Haralampos Pozidis and Evangelos Eleftheriou
Lecture Notes in Control and Information Sciences 413, 119-135, Springer, 2011

Systems and Control Approach to Electro-Thermal Sensing
A. Sebastian
Control Technologies for Emerging Micro and Nanoscale Systems, 137-152, Springer, 2011

Enabling technologies for multilevel phase-change memory
H. Pozidis, N. Papandreou, A. Sebastian, A. Pantazi, T. Mittelholzer, G. Close, E. Eleftheriou
European Phase Change and Ovonics Symposium (E\PCOS), 2011

Ultra High Density Scanning Electrical Probe Phase-Change Memory for Archival Storage
Lei Wang, David Wright, Purav Shah, Mustafa M. Aziz, Abu Sebastian, Haralampos Pozidis and Andrew Pauza
Japanese Journal of Applied Physics50, 09MD04, 2011

Nanopositioning with multiple sensors: MISO control and inherent sensor fusion
A. Sebastian, A. Pantazi
World Congress, pp. 2012--2017, 2011

Force modulation for enhanced nanoscale electrical sensing
WW Koelmans, A. Sebastian, L. Abelmann, M. Despont, H. Pozidis
Nanotechnology 22(35), 355706, IOP Publishing, 2011

Fabrication of conducting AFM cantilevers with AlN-based piezoelectric actuators
HJ Quenzer, U. Drechsler, A. Sebastian, S. Marauska, B. Wagner, M. Despont
Procedia Engineering25, 665-668, Elsevier, 2011

Drift-resilient cell-state metric for multilevel phase-change memory
N. Papandreou, A. Sebastian, A. Pantazi, M. Breitwisch, C. Lam, H. Pozidis, E. Eleftheriou
IEEE International Electron Devices Meeting (IEDM), 2011

High-Speed, Ultra-High-Precision Nanopositioning: A Signal Transformation Approach
A. Bazaei, Y. Yong, S. Moheimani, A. Sebastian
Control Technologies for Emerging Micro and Nanoscale Systems, 47-65, Springer, 2011

Ultra high density scanning electrical probe phase-change memory for archival storage.
L. Wang, C.D. Wright, P. Shah, M.M. Aziz, A. Sebastian, H. Pozidis, A. Pauza
Japanese Journal of Applied Physics 50(9), 1-2, Japan Society of Applied Physics, 2011

High-speed spiral nanopositioning
A. Kotsopoulos, A. Pantazi, A. Sebastian, T. Antonakopoulos
Proceedings of IFAC world congress, 2011

Non-resistance-based cell-state metric for phase-change memory
A. Sebastian, N. Papandreou, A. Pantazi, H. Pozidis, E. Eleftheriou
Journal of Applied Physics 110(8), 2011

Scanning probe microscopy based on magnetoresistive sensing
D.R. Sahoo, A. Sebastian, W. Haeberle, H. Pozidis, E. Eleftheriou
Nanotechnology22, 145501, IOP Publishing, 2011

Resistance switching at the nanometre scale in amorphous carbon
A Sebastian, A Pauza, C Rossel, R M Shelby, A F Rodriguez, H Pozidis, E Eleftheriou
New Journal of Physics13, 013020, IOP Publishing, 2011

Impulsive control for fast nanopositioning
T. Tuma, A. Sebastian, W. Haeberle, J. Lygeros, A. Pantazi
Nanotechnology 22(13), 135501, IOP Publishing, 2011

Impulsive control for nanopositioning: stability and performance
T. Tuma, A. Pantazi, J. Lygeros, A. Sebastian
Proceedings of the 14th International Conference on Hybrid Systems: Computation and Control, pp. 173--180, 2011

Programming algorithms for multilevel phase-change memory
N. Papandreou, H. Pozidis, A. Pantazi, A. Sebastian, M. Breitwisch, C. Lam, E. Eleftheriou
IEEE International Symposium on Circuits and Systems (ISCAS) , pp. 329-332, 2011

2010

Tracking Control of a Novel AFM Scanner using Signal Transformation Method
Ali Bazaei and Yuen K. Yong and S.O. Reza Moheimani and Abu Sebastian
Proceedings of the IFAC Symposium on Mechatronics, Boston, USA, 2010

Tracking of high frequency piecewise affine signals using impulsive control
Tomas Tuma, Angeliki Pantazi, John Lygeros and Abu Sebastian
Proceedings of 5th IFAC Symposium on Mechatronics, Boston, USA, pp. 90-95, 2010

Write strategies for multiterabit per square inch scanned-probe phase-change memories
C. David Wright, Purav Shah, Lei Wang, Mustafa M. Aziz, Abu Sebastian and Haris Pozidis
Applied Physics Letters97, 173104, 2010

Real-Time Models of Electrostatically Actuated Cantilever Probes With Integrated Thermal Sensor for Nanoscale Interrogation
P. Agarwal, D.R. Sahoo, A. Sebastian, H. Pozidis, M.V. Salapaka
Microelectromechanical Systems, Journal of 19(1), 83-98, IEEE, 2010

Scanning thermal microscopy for fast multiscale imaging and manipulation
R.J. Cannara, A. Sebastian, B. Gotsmann, H. Rothuizen
IEEE Transactions on Nanotechnology 9(6), 745-753, 2010

Force modulation for improved conductive-mode atomic force microscopy
W.W. Koelmans, A. Sebastian, M. Despont, H. Pozidis
Nanotechnology (IEEE-NANO), 2010 10th IEEE Conference on, pp. 875--878

Channel modeling and signal processing for probe storage channels
H Pozidis, G Cherubini, A Pantazi, A Sebastian, E Eleftheriou
IEEE Journal on Selected Areas in Communications 28(2), 143-157, IEEE, 2010

Scanning Probe Microscopy Using Higher-Mode Electrostatically-Actuated Microcantilevers
D.R. Sahoo, V. Kartik, A. Sebastian, H. Pozidis
Proceedings of the IFAC Symposium on Mechatronics, Boston, USA, pp. 212--219, 2010

Stability of signal transformation method for triangular waveform tracking
A. Bazaei, S.O.R. Moheimani, A. Sebastian
Decision and Control (CDC), 2010 49th IEEE Conference on, pp. 2402--2407

Multilevel phase-change memory
N. Papandreou, A. Pantazi, A. Sebastian, M. Breitwisch, C. Lam, H. Pozidis, E. Eleftheriou
IEEE International Conference on Electronics, Circuits, and Systems (ICECS), pp. 1017-1020, 2010

Ultralow nanoscale wear through atom-by-atom attrition in silicon-containing diamond-like carbon
H Bhaskaran, B Gotsmann, A Sebastian, U Drechsler, M A Lantz, M Despont, P Jaroenapibal, R W Carpick, Y Chen, K Sridharan
Nature Nanotechnology 5(3), 181-185, 2010

High-throughput intermittent-contact scanning probe microscopy
D R Sahoo, W Haeberle, A Sebastian, H Pozidis, E Eleftheriou
Nanotechnology21, 075701, IOP Publishing, 2010

Estimation of amorphous fraction in multilevel phase-change memory cells
N. Papandreou, A. Pantazi, A. Sebastian, E. Eleftheriou, M. Breitwisch, C. Lam, H. Pozidis
Solid-State Electronics 54(9), 991-996, 2010

2009

Signal transformation approach to fast nanopositioning
Abu Sebastian and S. O. Reza Moheimani
Review of Scientific Instruments80, 076101, 2009

Nanoscale PtSi tips for conducting probe technologies
H. Bhaskaran, A. Sebastian, M. Despont
IEEE Trans. Nanotechnology 8(1), 129-131, 2009

Novel scanning probe concepts for nanoscale electrical characterization
A. Sebastian, H. Bhaskaran, A. Pauza, M. Despont, H. Pozidis
Nanotechnology, 2009. IEEE-NANO 2009. 9th IEEE Conference on, pp. 72--74

High-speed intermittent-contact mode scanning probe microscopy using cantilevers with integrated electrostatic actuator and thermoelectric sensor
DR Sahoo, W. Haberle, P. Bachtold, A. Sebastian, H. Pozidis, E. Eleftheriou
American Control Conference ACC'09, pp. 2278-2283, 2009

Multiscale thermoelectric imaging for fast metrology and manipulation
R.J. Cannara, A. Sebastian, B. Gotsmann, H. Rothuizen
9th IEEE Conference on Nanotechnology, pp. 781-783, 2009

Recent advances in conduction mode scanning probes for phase change probe storage applications
H. Bhaskaran, A. Sebastian, A. Pauza, L. Wang, C.D. Wright, M. Despont, H. Pozidis, E. Eleftheriou
Proc. European Symp. on Phase Change and Ovonic Science (E\PCOS 2009)

Encapsulated tips for reliable nanoscale conduction in scanning probe technologies
H. Bhaskaran, A. Sebastian, U. Drechsler, M. Despont
Nanotechnology 20(10), 105701, IOP Publishing, 2009

Magnetoresistive sensor based scanning probe microscopy
DR Sahoo, A. Sebastian, W. Haberle, H. Pozidis, E. Eleftheriou
9th IEEE Conference on Nanotechnology, pp. 862-865, 2009

Feedback enhanced thermo-electric topography sensing
A. Sebastian, D. Wiesmann, P. Baechtold, H. Rothuizen, M. Despont, U. Drechsler
International Conf. on Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS), pp. 1963-1966, 2009

Nanoscale phase transformation in GeSbTe using encapsulated scanning probes and retraction force microscopy
H. Bhaskaran, A. Sebastian, A. Pauza, H. Pozidis, M. Despont
Review of Scientific Instruments80, 083701, 2009

Design of power-optimized thermal cantilevers for scanning probe topography sensing
H. Rothuizen, M. Despont, U. Drechsler, C. Hagleitner, A. Sebastian, D. Wiesmann
22nd IEEE International Conference on Micro Electro Mechanical Systems, MEMS, pp. 603-606, 2009

Multilevel phase-change memory modeling and experimental characterization
A. Pantazi, A. Sebastian, N. Papandreou, M. Breitwisch, C. Lam, H. Pozidis, E. Eleftheriou
European Phase Change and Ovonics Symposium (E\PCOS), pp. 34-41, 2009

Nanoscale PtSi tips for conducting probe technologies
H. Bhaskaran, A. Sebastian, M. Despont
Nanotechnology, IEEE Transactions on 8(1), 128-131, IEEE, 2009

2008

Nanoscale silicon-doped diamond-like-carbon tips
Harish Bhaskaran et al.
Proceedings of the Conference on Micro and Nanoengineering, Athens, Greece, 2008

Track-Follow Control for High-Density Probe-Based Storage Devices
A. Pantazi, A. Sebastian, H. Pozidis, E. Eleftheriou
World Congress, pp. 9236--9241, 2008

Dynamics of Integrated Silicon Micro-Heaters
A. Sebastian, D. Wiesmann
World Congress, pp. 10474--10479, 2008

A self servo writing scheme for a MEMS storage device with sub-nanometer precision
A. Sebastian, A. Pantazi, SO Moheimani, H. Pozidis, E. Eleftheriou, others
Proceedings of the 17th World Congress of the International Federation of Automatic Control, pp. 9242-9247, 2008

Modeling and experimental identification of silicon microheater dynamics: A systems approach
A. Sebastian, D. Wiesmann
Journal of Microelectromechanical Systems 17(4), 911-920, 2008

Achieving subnanometer precision in a MEMS-based storage device during self-servo write process
A. Sebastian, A. Pantazi, S.O.R. Moheimani, H. Pozidis, E. Eleftheriou
IEEE Transactions on Nanotechnology 7(5), 586-595, IEEE, 2008

A self servo writing scheme for a MEMS storage device with sub-nanometer precision
A. Sebastian, A. Pantazi, S.O.R. Moheimani, H. Pozidis, E. Eleftheriou
Proc. IFAC World Congress, Seoul, Korea, pp. 9241--9247, 2008

Modeling and identification of the dynamics of electrostatically actuated microcantilever with integrated thermal sensor
P. Agarwal, D. Sahoo, A. Sebastian, H. Pozidis, M.V. Salapaka
Decision and Control, 2008. CDC 2008. 47th IEEE Conference on, pp. 2624--2630

On intermittent-contact mode sensing using electrostatically-actuated micro-cantilevers with integrated thermal sensors
DR Sahoo, W. Haberle, P. Bachtold, A. Sebastian, H. Pozidis, E. Eleftheriou
American Control Conference, 2008, pp. 2034--2039

Scanning probe-based phase-change terabyte memories
CD Wright, M. Armand, MM Aziz, H. Bhaskaran, BC Choo, C. Davies, M. Despont, S. Gidon, M. Klein, O. Lemonnier, others
EuropeannPhase Change and Ovonics Symposium, 2008

Nanopositioning for probe-based data storage [Applications of Control]
A. Sebastian, A. Pantazi, H. Pozidis, E. Eleftheriou
IEEE Control Systems Magazine 28(4), 26-35, 2008

Probe-based ultrahigh-density storage technology
A Pantazi, A Sebastian, T Antonakopoulos, P Baechtold, A Bonaccio, J Bonan, G Cherubini, M Despont, R Di Pietro, U Drechsler, U Duerig, B Gotsmann, W Haeberle, C Hagleitner, James L. Hedrick, D Jubin, A Knoll, M Lantz, J Pentarakis, H Pozidis, RC Pratt et
IBM Journal of Research and Development 52(4.5), 493-511, 2008

2007

A review of the systems approach to the analysis of dynamic-mode atomic force microscopy
A. Sebastian, A. Gannepalli, M.V. Salapaka
Control Systems Technology, IEEE Transactions on 15(5), 952-959, IEEE, 2007

Control of MEMS-based scanning-probe data-storage devices
A Pantazi, A Sebastian, G Cherubini, M Lantz, H Pozidis, H Rothuizen, E Eleftheriou
IEEE Transactions on Control Systems Technology 15(5), 824-841, IEEE, 2007

Jitter investigation and performance evaluation of a small-scale probe storage device prototype
A. Sebastian, A. Pantazi, H. Pozidis
Global Telecommunications Conference, 2007. GLOBECOM'07. IEEE, pp. 288--293

2006

Scanning Probes Entering Data Storage: From Promise to Reality
H. Pozidis, P. Bachtold, J. Bonan, G. Cherubini, E. Eleftheriou, M. Despont, U. Drechsler, U. Durig, B. Gotsmann, W. Haberle, C. Hagleitner, D. Jubin, A. Knoll, M.A. Lantz, A. Pantazi, H.E. Rothuizen, A. Sebastian, R. Stutz, D.W. Wiesmann
Proc. IEEE Conference on Emerging Technologies - Nanoelectronics, pp. 39-44, 2006

Towards faster data access: Seek operations in MEMS-based storage devices
A Sebastian, A Pantazi, G Cherubini, M Lantz, H Rothuizen, H Pozidis, E Eleftheriou
Proc. IEEE Conf. on Control Applications, pp. 283-288, 2006

An analog frontend chip for a MEMS-based parallel scanning-probe data-storage system
Christoph Hagleitner, Tony Bonaccio, Aggeliki Pantazi, Abu Sebastian, Evangelos Eleftheriou
2006 Symposium on VLSI Circuits. Digest of Technical Papers., pp. 57-58

Dynamics of Silicon Micro-Heaters: Modelling and Experimental Identification
D. Wiesmann, A. Sebastian
19th IEEE International Conference onMicro Electro Mechanical Systems, MEMS, pp. 182-185, 2006

2005

New approaches for sample-profile estimation for fast atomic force microscopy
Srinivasa Salapaka, Tathagata De and Abu Sebastian
Proceedings of the ASME international mechanical engineering congress and exposition, Orlando, FL, pp. 1317-1326, 2005

Two sensor based H infinity control for nanopositioning in probe storage
Angeliki Pantazi, Abu Sebastian, Evangelos Eleftheriou and Haris Pozidis
Proceedings of the IEEE Conference on Decision and Control, Seville, Spain, pp. 1174-1179, 2005

Thermally driven non-contact atomic force microscopy
Anil Gannepalli, Abu Sebastian, Jason Cleveland and Murti Salapaka
Applied Physics Letters87, 111901, 2005
Research highlighted in Nature vol 437(22)

Design methodologies for robust nano-positioning
A. Sebastian, S.M. Salapaka
Control Systems Technology, IEEE Transactions on 13(6), 868--876, IEEE, 2005

Sample-profile estimate for fast atomic force microscopy
S. Salapaka, T. De, A. Sebastian
Applied Physics Letters87, 053112, 2005

Two-sensor-based H_∞ control for nanopositioning in probe storage
A. Pantazi, A. Sebastian, H. Pozidis, E. Eleftheriou
44th IEEE Conference on Decision and Control; 2005 and 2005 European Control Conference , pp. 1174-1179

Harnessing the transient signals in atomic force microscopy
D.R. Sahoo, A. Sebastian, M.V. Salapaka
International Journal of Robust and Nonlinear Control 15(16), 805-820, Wiley Online Library, 2005

Nanopositioning for probe storage
A Sebastian, A Pantazi, G Cherubini, E Eleftheriou, MA Lantz, H Pozidis
Proc. IEEE American Control Conference, pp. 4181-4186, 2005

Signal processing for probe storage
H. Pozidis, P. Bachtold, G. Cherubini, E. Eleftheriou, C. Hagleitner, A. Pantazi, A. Sebastian
Proc. IEEE International Conference on Acoustics, Speech, and Signal Processing, pp. 745-748, 2005

Integrating nanotechnology into a working storage device
A. Knoll, P. Bachtold, J. Bonan, G. Cherubini, M. Despont, U. Drechsler, U. Durig, B. Gotsmann, W. Haberle, C. Hagleitner, D. Jubin, M. A. Lantz, A. Pantazi, H. Pozidis, H. Rothuizen, A. Sebastian, R. Stutz, P. Vettiger, D. Wiesmann, E. S. Eleftheriou
Proc. International Conference on Micro- and Nano-Engineering, pp. 1692--1697, Elsevier, 2005

A robust control based solution to the sample-profile estimation problem in fast atomic force microscopy
S. M Salapaka, T. De, A. Sebastian
International Journal of Robust and Nonlinear Control 15(16), 821-837, Wiley Online Library, 2005

2004

An ultra-fast scheme for sample-detection in dynamic-mode atomic force microscopy
Deepak Sahoo, Abu Sebastian and Murti Salapaka
NSTI-Nanotech3, 11-14, 2004

The amplitude phase dynamics and fixed points in tapping-mode atomic force microscopy
bu Sebastian, Anil Gannepalli and Murti Salapaka
Proceedings of the American Control Conference, Boston, MA, 2004

Thermal noise response based control of tip-sample separation in atomic force microscopy
Anil Gannepalli, Abu Sebastian, Jason Cleveland and Murti Salapaka
Proceedings of the American Control Conference, Boston, MA, 2004

Nanotechnology: A systems and control approach
A. Sebastian
Ph.D. Thesis, 2004

A highly parallel probe-based storage system
M Despont, T Altebaeumer, P Baechtold, GK Binnig, G Cherubini, U Drechsler, U Duerig, E Eleftheriou, B Gotsmann, W Haeberle
Proc. Microprocesses and Nanotechnology Conference, pp. 4-5, 2004

2003

Control of the nanopositioning devices
Srinivasa Salapaka, Abu Sebastian
Decision and Control, 2003. Proceedings. 42nd IEEE Conference on, pp. 3644--3649

H_∞ loop shaping design for nano-positioning
A. Sebastian, S. Salapaka
Proceedings of the 2003 American Control Conference, pp. 3708-3713

Transient-signal-based sample-detection in atomic force microscopy
Deepak R Sahoo, Abu Sebastian, Murti V Salapaka
Applied Physics Letters 83(26), 5521--5523, AIP, 2003

Robust control approach to atomic force microscopy
Abu Sebastian, Jason Cleveland and Murti Salapaka
Proceedings of the IEEE Conference on Decision and Control, Maui, Hawaii, 2003

Transient signal based sample detection in atomic force microscopy
Deepak Sahoo, Abu Sebastian and Murti Salapaka
Applied Physics Letters 83(26), 5521-5523, 2003

System tools applied to micro-cantilever based devicesAbu Sebastian, Srinivasa Salapaka and Murti Salapaka
Abu Sebastian, Srinivasa Salapaka and Murti Salapaka
Multidisciplinary Research in Control, Springer Verlag, LNCIS, pp. 83-99, 2003

An observer based sample detection scheme for atomic force microscopy
A. Sebastian, D.R. Sahoo, M.V. Salapaka
Decision and Control, 2003. Proceedings. 42nd IEEE Conference on, pp. 2132--2137

2002

Design, identification and control of a fast nano-positioning device
Srinivasa Salapaka, Abu Sebastian, Jason Cleveland and Murti Salapaka
Proceedings of the American Control Conference, Anchorage, AL, 2002

Analysis of periodic solutions in tapping mode atomic force microscopy: An IQC approach
Abu Sebastian and Murti Salapaka
Proceedings of the International symposium on Mathematical Theory of Networks and Systems, South Bend, IN, 2002

High bandwidth nano-positioner: A robust control approach
Srinivasa Salapaka, Abu Sebastian, Jason Cleveland and Murti Salapaka
Review of Scientific Instruments 73(9), 3232-3241, 2002

2001

Harmonic and power balance tools for atomic force microscopy
Abu Sebastian, Murti Salapaka, Degang Chen and Jason Cleveland
Journal of Applied Physics 89(11), 6473-6480, 2001

1999

Harmonic analysis based modeling of tapping-mode AFM
Abu Sebatian, Murti Salapaka, Degang Chen and Jason Cleveland
Proceedings of the American Control Conference, San Diego, CA, pp. 232-236, 1999
Abstract

Projects and Groups

Pat Goldberg Memorial Best Paper Awards

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