Aharonov-Bohm oscillation amplitude in small ballistic interferometers
- 1 February 2004
- journal article
- Published by Pleiades Publishing Ltd in JETP Letters
- Vol. 79 (3) , 136-140
- https://doi.org/10.1134/1.1719130
Abstract
Small-radius (110 nm) ring interferometers were fabricated by the local anodic oxidation of AlGaAs/GaAs heterostructures containing 2D electron gas. Measurements and modeling show that a small ring asymmetry, which is detected by an atomic force microscope, leads to a small amplitude of Aharonov-Bohm oscillations, while a stronger asymmetry completely suppresses these oscillations.Keywords
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