量子霍尔GaAs-AlGaAs异质结构中的零电流电压振荡和非线性输运

1998 Conference on Precision Electromagnetic Measurements Digest (Cat. No.98CH36254) Pub Date : 1998-07-06 DOI:10.1109/CPEM.1998.699942

J. Sesé, A. Camón, C. Rillo, J. Blanchet, F. Piquernal, G. Genevès

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引用次数: 0

摘要

量子霍尔样品中的零电流电压振荡已有文献报道。它的起源还不清楚。本文提出了一种可能的解释，基于噪声输入和电压触点附近载流子密度的局部差异引起的热电效应。介绍了GaAs-AlGaAs异质结构的非线性输运实验。

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Zero-current voltage oscillations and non-linear transport in Quantum Hall GaAs-AlGaAs heterostructures

Zero-current voltage oscillations in Quantum Hall samples have been reported in literature. Its origin is not yet understood. Here we propose a possible explanation based on a thermoelectric effect caused by noise input and local differences in the carrier density near the voltage contacts. Experiments on non-linear transport in GaAs-AlGaAs heterostructures are presented.

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1998 Conference on Precision Electromagnetic Measurements Digest (Cat. No.98CH36254)

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