Ann-Kathrin Michel, Anna Corinna Niemann, et al.
Journal of Physics D: Applied Physics
Locally induced, magnetic order on the surface of a topological insulator nanowire could enable room-temperature topological quantum devices. Here we report on the realization of selective magnetic control over topological surface states on a single facet of a rectangular Bi2Te3 nanowire via a magnetic insulating Fe3O4 substrate. Low-temperature magnetotransport studies provide evidence for local time-reversal symmetry breaking and for enhanced gapping of the interfacial 1D energy spectrum by perpendicular magnetic-field components, leaving the remaining nanowire facets unaffected. Our results open up great opportunities for development of dissipation-less electronics and spintronics.
Ann-Kathrin Michel, Anna Corinna Niemann, et al.
Journal of Physics D: Applied Physics
Anna Corinna Niemann, Tim Boehnert, et al.
Advanced Electronic Materials
Alan Molinari, Federico Balduini, et al.
ACS Applied Electronic Materials
Heinz Schmid, Benedikt F. Mayer, et al.
S3S 2017