Coulomb "blockade" of nuclear spin relaxation in quantum dots

被引：26

作者：

Lyanda-Geller, YB ^{[1
]}

Aleiner, IL

Altshuler, BL

机构：

[1] USN, Res Lab, Washington, DC 20375 USA

[2] Univ Illinois, Beckman Inst, Urbana, IL 61801 USA

[3] Univ Illinois, Dept Phys, Urbana, IL 61801 USA

[4] SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA

[5] Princeton Univ, Dept Phys, Princeton, NJ 08544 USA

[6] NEC Res Inst, Princeton, NJ 08540 USA

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 89卷 / 10期

关键词：

D O I：

10.1103/PhysRevLett.89.107602

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study the mechanism of nuclear spin relaxation in quantum dots due to the electron exchange with the 2D gas. We show that the nuclear spin relaxation rate 1/T-1 is dramatically affected by the Coulomb blockade (CB) and can be controlled by gate voltage. In the case of strong spin-orbit (SO) coupling the relaxation rate is maximal in the CB valleys, whereas for the weak SO coupling the maximum of 1/T-1 is near the CB peaks.

引用

页码：107602 / 107602

页数：4

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