Spin susceptibilities, spin densities, and their connection to spin currents

被引：65

作者：

Erlingsson, SI ^{[1
]}

Schliemann, J ^{[1
]}

Loss, D ^{[1
]}

机构：

[1] Univ Basel, Dept Phys & Astron, CH-4056 Basel, Switzerland

来源：

PHYSICAL REVIEW B | 2005年 / 71卷 / 03期

关键词：

D O I：

10.1103/PhysRevB.71.035319

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We calculate the frequency-dependent spin susceptibilities for a two-dimensional electron gas with both Rashba and Dresselhaus spin-orbit interactions. The resonances of the susceptibilities depend on the relative values of the Rashba and Dresselhaus spin-orbit constants, which could be manipulated by gate voltages. We derive exact continuity equations, with source terms, for the spin density and use those to connect the spin current to the spin density. In the free electron model the susceptibilities play a central role in the spin dynamics since both the spin density and the spin current are proportional to them.

引用

页数：6

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