N.H. Karam, A. Mastrovito, et al.
Journal of Crystal Growth
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.
N.H. Karam, A. Mastrovito, et al.
Journal of Crystal Growth
T.P. Smith III
SSDM 1991
M. Arafa, P. Fay, et al.
IEEE Electron Device Letters
W.T. Masselink
Gallium Arsenide and Related Compounds 1991