Reduction of mesoscopic conductance fluctuations by a magnetic field

Philippe Debray; Jose Vicente

doi:10.1117/12.20775

1 October 1990 Reduction of mesoscopic conductance fluctuations by a magnetic field

Philippe Debray, Jose Vicente

Proceedings Volume 1284, Nanostructure and Microstructure Correlation with Physical Properties of Semiconductors; (1990) https://doi.org/10.1117/12.20775
Event: Advances in Semiconductors and Superconductors: Physics Toward Devices Applications, 1990, San Diego, CA, United States

Abstract

We have studied conductance fluctuations 5g due to quantum interference in mesoscopic modulation doped GaAs/AIGaAs heterostructures as a function of Fermi energy EF and as discrete time-dependent switching noise in various applied magnetic fields B at low temperatures. These systems have no, or negligibly small spin-orbit scattering. We observe a reduction of the variance by a net factor of four. This reduction results from a breaking of the spin degeneracy due to Zeeman splitting.

Citation Download Citation

Philippe Debray and Jose Vicente "Reduction of mesoscopic conductance fluctuations by a magnetic field", Proc. SPIE 1284, Nanostructure and Microstructure Correlation with Physical Properties of Semiconductors, (1 October 1990); https://doi.org/10.1117/12.20775

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