Aperiodic Conductance Fluctuations in a Narrow GaAs/AlGaAs Wire
- 1 June 1989
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 28 (6A) , L1025-1028
- https://doi.org/10.1143/jjap.28.l1025
Abstract
We have studied quantum transport properties of a narrow GaAs/AlGaAs wire fabricated by electron beam lithography by means of the magnetoresistance (MR) and its Fourier transform. Magnetofingerprints and universal conductance fluctuations are observed at the low-temperature MR. It is found that decay of aperiodic fluctuations, which is observed in the low-frequency side of the Fourier spectra of the MR, shifts toward low frequencies as magnetic field increases.Keywords
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