Resonant tunneling in the quantum Hall regime: Measurement of fractional charge

被引：10

作者：

Goldman, VJ

机构：

[1] Department of Physics, State University of New York, Stony Brook

来源：

SURFACE SCIENCE | 1996年 / 361卷 / 1-3期

基金：

美国国家科学基金会;

关键词：

quantum effects; tunneling;

D O I：

10.1016/0039-6028(96)00317-2

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In experiments on resonant tunneling through a quantum antidot in the quantum Hall (QH) regime, periodic conductance peaks are observed both as a function of magnetic field and back-gate voltage. A combination of the two periods constitutes a measurement of the charge of the tunneling particles and implies that charge deficiency on the antidot is quantized in units of the charge of quasiparticles of the surrounding quantum Hall condensate. The experiment yields values for the electron charge of 1.57 x 10(-19) C= (0.98+/-0.03)e for nu=1 and 2 integer QH, and for the quasi-particle charge 5.20 x 10(-20) C=(0.325+/-0.01)e for nu=1/3 fractional QH effect.

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页码：1 / 6

页数：6

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