Z. Kovats, T. Salditt, et al.
Journal of Physics D: Applied Physics
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.
Z. Kovats, T. Salditt, et al.
Journal of Physics D: Applied Physics
S. Nelson, K. Ismail, et al.
Applied Physics Letters
A. Zaslavsky, D.A. Grützmacher, et al.
Physical Review B
K. Ismail, F. Legoues, et al.
Applied Physics Letters