BALLISTIC CONDUCTANCE FLUCTUATIONS IN SHAPE SPACE

被引：115

作者：

CHAN, IH ^{[1
]}

CLARKE, RM ^{[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：

PHYSICAL REVIEW LETTERS | 1995年 / 74卷 / 19期

关键词：

D O I：

10.1103/PhysRevLett.74.3876

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Ballistic conductance fluctuations were measured in a GaAs quantum dot as a function of shape distortion and magnetic field. Shape distortion provides a novel source of conductance fluctuations and creates an effective "ensemble of dots," allowing statistics to be studied at fixed field. Continuous changes in fluctuation statistics due to breaking of time-reversal symmetry are seen about zero magnetic field. Throughout, conductance fluctuation distributions appear Gaussian. The power spectrum of shape fluctuations appears exponential over three decades. © 1995 The American Physical Society.

引用

页码：3876 / 3879

页数：4

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