Phase coherence, interference, and conductance quantization in a confined two-dimensional hole gas
- 15 February 1994
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 49 (7), 5101-5104
- https://doi.org/10.1103/physrevb.49.5101
Abstract
A system of two parallel constrictions in a two-dimensional hole gas has been studied. At zero magnetic-field conductance quantization is observed through the individual constrictions. At high magnetic fields Aharonov-Bohm oscillations result from resonant tunneling through states encircling the repulsive potential between the constrictions. The oscillations demonstrate directly phase-coherent transport of holes.Keywords
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