Spin-orbit effects in a GaAs quantum dot in a parallel magnetic field

被引：67

作者：

Halperin, BI ^{[1
]}

Stern, A

Oreg, Y

Cremers, JNHJ

Folk, JA

Marcus, CM

机构：

[1] Harvard Univ, Lyman Lab Phys, Cambridge, MA 02138 USA

[2] Weizmann Inst Sci, Dept Condensed Matter Phys, IL-76100 Rehovot, Israel

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 86卷 / 10期

关键词：

D O I：

10.1103/PhysRevLett.86.2106

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We analyze the effects of spin-orbit coupling on fluctuations of the conductance of a quantum dot fabricated in a GaAs heterostructure. Counterintuitively we argue that spin-orbit effects may become important in the presence of a large parallel magnetic field B-//. even if they are negligible for B-// = 0. This should be manifest in the level repulsion of a closed dot, and in reduced conductance fluctuations in dots with a small number of open channels in each lead, for large B-//. Our picture is consistent with the experimental observations of Folk er al.

引用

页码：2106 / 2109

页数：4

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