Experimental determination of the current flow in the quantum Hall regime

B. B. Goldberg; Ch Simon; F. F. Fang; M. K. Thomas; S. Wright

doi:10.1016/0039-6028(86)90964-7

Experimental determination of the current flow in the quantum Hall regime

B. B. Goldberg^*, Ch Simon, F. F. Fang, M. K. Thomas, S. Wright

^*Corresponding author for this work

Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

We have developed a new method of determining the interior potential distribution, and hence the current flow, in a quantized two-dimensional electron gas (2DEG) at low temperature and high magnetic fields. Our results show that current carrying states exist in the bulk of the 2DEG and that the distribution of current changes with source-drain current and can vary appreciably over a small range of magnetic field well within the quantum Hall regime. In addition, increasing σ_xx reduces the variation in the current distribution with magnetic field.

Original language	English (US)
Pages (from-to)	214-221
Number of pages	8
Journal	Surface Science
Volume	170
Issue number	1-2
DOIs	https://doi.org/10.1016/0039-6028(86)90964-7
State	Published - Apr 3 1986

ASJC Scopus subject areas

Condensed Matter Physics
Surfaces and Interfaces
Surfaces, Coatings and Films
Materials Chemistry

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title = "Experimental determination of the current flow in the quantum Hall regime",

abstract = "We have developed a new method of determining the interior potential distribution, and hence the current flow, in a quantized two-dimensional electron gas (2DEG) at low temperature and high magnetic fields. Our results show that current carrying states exist in the bulk of the 2DEG and that the distribution of current changes with source-drain current and can vary appreciably over a small range of magnetic field well within the quantum Hall regime. In addition, increasing σxx reduces the variation in the current distribution with magnetic field.",

author = "Goldberg, {B. B.} and Ch Simon and Fang, {F. F.} and Thomas, {M. K.} and S. Wright",

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AU - Goldberg, B. B.

AU - Simon, Ch

AU - Fang, F. F.

AU - Thomas, M. K.

AU - Wright, S.

PY - 1986/4/3

Y1 - 1986/4/3

N2 - We have developed a new method of determining the interior potential distribution, and hence the current flow, in a quantized two-dimensional electron gas (2DEG) at low temperature and high magnetic fields. Our results show that current carrying states exist in the bulk of the 2DEG and that the distribution of current changes with source-drain current and can vary appreciably over a small range of magnetic field well within the quantum Hall regime. In addition, increasing σxx reduces the variation in the current distribution with magnetic field.

AB - We have developed a new method of determining the interior potential distribution, and hence the current flow, in a quantized two-dimensional electron gas (2DEG) at low temperature and high magnetic fields. Our results show that current carrying states exist in the bulk of the 2DEG and that the distribution of current changes with source-drain current and can vary appreciably over a small range of magnetic field well within the quantum Hall regime. In addition, increasing σxx reduces the variation in the current distribution with magnetic field.

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