Spin relaxation times in disordered graphene

被引：43

作者：

Huertas-Hernando, D. ^{[1
]}

Guinea, F.

Brataas, A.

机构：

[1] Norwegian Univ Sci & Technol, Dept Phys, N-7491 Trondheim, Norway

[2] Ctr Adv Study, N-027 Oslo, Norway

[3] CSIC, Inst Ciencia Mat, Madrid 28049, Spain

来源：

EUROPEAN PHYSICAL JOURNAL-SPECIAL TOPICS | 2007年 / 148卷 / 1期

关键词：

European Physical Journal Special Topic; Spin Relaxation; Dirac Point; Localize Moment; Localize Magnetic Moment;

D O I：

10.1140/epjst/e2007-00238-0

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We consider two mechanisms of spin relaxation in disordered graphene. i) Spin relaxation due to curvature spin orbit coupling caused by ripples. ii) Spin relaxation due to the interaction of the electronic spin with localized magnetic moments at the edges. We obtain analytical expressions for the spin relaxation times tau(SO) and tau(J) due to both mechanisms and estimate their values for realistic parameters of graphene samples. We obtain that spin relaxation originating from these mechanisms is very weak and spin coherence is expected in disordered graphene up to samples of length L similar to 10 mu m.

引用

页码：177 / 181

页数：5

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