Electrometry using the quantum Hall effect in a bilayer two-dimensional electron system

被引：5
|
作者：
Ho, L. H. [1 ,2 ]
Taskinen, L. J. [1 ]
Micolich, A. P. [1 ]
Hamilton, A. R. [1 ]
Atkinson, P. [3 ]
Ritchie, D. A. [3 ]
机构：
[1] Univ New S Wales, Sch Phys, Sydney, NSW 2052, Australia
[2] CSIRO Mat Sci & Engn, Lindfield, NSW 2070, Australia
[3] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England
来源：
APPLIED PHYSICS LETTERS | 2010年 / 96卷 / 21期
基金：
澳大利亚研究理事会; 英国工程与自然科学研究理事会;
关键词：
effective mass; electrometers; gallium arsenide; III-V semiconductors; Landau levels; quantum Hall effect; two-dimensional electron gas; COMPRESSIBILITY; DENSITY; GAS;
D O I：
10.1063/1.3428778
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We discuss the development of a sensitive electrometer that utilizes a two-dimensional electron gas (2DEG) in the quantum Hall regime. As a demonstration, we measure the evolution of the Landau levels in a second, nearby 2DEG as the applied perpendicular magnetic field is changed, and extract an effective mass for electrons in GaAs that agrees within experimental error with previous measurements. (C) 2010 American Institute of Physics. [doi:10.1063/1.3428778]
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页数：3
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