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
收藏
页码：107602 / 107602
页数：4
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