Statistics and parametric correlations of Coulomb blockade peak fluctuations in quantum dots

被引：191

作者：

Folk, JA ^{[1
]}

Patel, SR ^{[1
]}

Godijn, SF ^{[1
]}

Huibers, AG ^{[1
]}

Cronenwett, SM ^{[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 | 1996年 / 76卷 / 10期

关键词：

D O I：

10.1103/PhysRevLett.76.1699

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report measurements of mesoscopic fluctuations of Coulomb blockade peaks in a shape-deformable GaAs quantum dot. Distributions of peak heights agree with predicted universal functions for both zero and nonzero magnetic fields. Parametric fluctuations of peak height and position, measured using a two-dimensional sweep over gate voltage and magnetic field, yield autocorrelations of height fluctuations consistent with a predicted Lorentzian-squared form for the unitary ensemble. We discuss the dependence of the correlation field on temperature and coupling to the leads as the dot is opened.

引用

页码：1699 / 1702

页数：4

共 32 条

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