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arXiv 0811.3070cond-mat.mtrl-sci
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具有Rashba自旋-轨道相互作用的圆柱形半导体异质结构上自旋波的激发

Excitation of spin waves on a cylindrical semiconductor heterostructure with Rashba spin-orbit interaction

P. Kleinert

摘要:

基于自旋-电荷漂移-扩散耦合方程,对圆柱形表面上的顺磁半导体量子阱中的元激发进行了理论研究。电场介导的本征模由振荡干涉图案光学激发,其在外电路中感应电流。对于一个给定半径的圆柱体,尖锐的共振预计会发生在稳态电流响应,这是由于弱阻尼自旋再磁化波。

英文摘要:

Elementary excitations in a paramagnetic semiconductor quantum well confined to a cylindrical surface are theoretically studied on the basis of coupled spin-charge drift-diffusion equations. The electric-field-mediated eigenmodes are optically excited by an oscillating interference pattern, which induces a current in the outer circuit. For a cylinder with a given radius, sharp resonances are predicted to occur in the steady-state current response, which are due to weakly damped spin remagnetization waves.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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