Universal fluctuations of Coulomb blockade peaks in quantum dots

被引：2

作者：

Patel, SR ^{[1
]}

Cronenwett, SM ^{[1
]}

Huibers, AG ^{[1
]}

Switkes, M ^{[1
]}

Folk, JA ^{[1
]}

Marcus, CM ^{[1
]}

Campman, K ^{[1
]}

Gossard, AC ^{[1
]}

机构：

[1] UNIV CALIF SANTA BARBARA,DEPT MAT,SANTA BARBARA,CA 93106

来源：

SUPERLATTICES AND MICROSTRUCTURES | 1997年 / 21卷 / 01期

基金：

美国国家科学基金会;

关键词：

Coulomb blockade; quantum dots; mesoscopic fluctuations;

D O I：

10.1006/spmi.1996.0139

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We describe recent measurements of the statistics and parametric correlations of Coulomb blockade peak heights in shape-deformable GaAs/AlxGa1-xAs quantum dots. We find good agreement between the measured distributions of peak heights and probability distributions predicted by random matrix theory for both B = 0 and B not equal 0. The measured magnetic flux correlation length phi(c) is of the order of but less than one flux quantum through the dot, phi(c) similar to 0.8 phi(0), inconsistent with phi(c) predicted by universal scaling theory for isolated chaotic quantum dots. (C) 1997 Academic Press Limited

引用

页码：43 / 48

页数：6

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