Nuclear tuning and detuning of the electron spin resonance in a quantum dot: Theoretical consideration

被引：41

作者：

Danon, Jeroen ^{[1
]}

Nazarov, Yuli V. ^{[1
]}

机构：

[1] Delft Univ Technol, Kavli Inst NanoSci, NL-2628 CJ Delft, Netherlands

来源：

PHYSICAL REVIEW LETTERS | 2008年 / 100卷 / 05期

关键词：

D O I：

10.1103/PhysRevLett.100.056603

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study nuclear spin dynamics in a quantum dot close to the conditions of electron spin resonance. We show that at a small frequency mismatch, the nuclear field detunes the resonance. Remarkably, at larger frequency mismatch, its effect is opposite: The nuclear system is bistable, and in one of the stable states, the field accurately tunes the electron spin splitting to resonance. In this state, the nuclear field fluctuations are strongly suppressed, and nuclear spin relaxation is accelerated.

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页数：4

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