T.P. Smith III, K.Y. Lee, et al.
Physical Review B
We have studied the transition from isolated to coupled quantum dots in a lateral surface-superlattice structure in the presence of a perpendicular magnetic field. The coupling between the dots can be tuned by changing the bias of the grid gate. Our magnetocapacitance measurements reveal three distinct regimes: isolated quantum dots where collective effects are not observed, a tight-binding regime where the measurement results are sensitive to the rationality of flux quanta per unit cell, and a superlattice regime where commensurability effects between the magnetic orbits and the superlattice periodicity are observed.
T.P. Smith III, K.Y. Lee, et al.
Physical Review B
P.M. Mooney, J.L. Jordan-Sweet, et al.
Applied Physics Letters
W.T. Masselink
Semiconductor Science and Technology
T.P. Smith III
SSDM 1991