Intense terahertz laser fields on a two-dimensional electron gas with Rashba spin-orbit coupling

被引：23
|
作者：
Cheng, JL
Wu, MW [1 ]
机构：
[1] Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Anhui, Peoples R China
[2] Univ Sci & Technol China, Dept Phys, Hefei 230026, Anhui, Peoples R China
来源：
APPLIED PHYSICS LETTERS | 2005年 / 86卷 / 03期
基金：
高等学校博士学科点专项科研基金; 中国国家自然科学基金;
关键词：
D O I：
10.1063/1.1852732
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The spin-dependent density of states and the density of spin polarization of an InAs-based two-dimensional electron gas with the Rashba spin-orbit coupling under an intense terahertz laser field are investigated by utilizing the Floquet states to solve the time-dependent Schrodinger equation. It is found that both densities are strongly affected by the terahertz laser field. Especially a terahertz magnetic moment perpendicular to the external terahertz laser field in the electron gas is induced. This effect can be used to convert terahertz electric signals into terahertz magnetic ones efficiently. (C) 2005 American Institute. of Physics.
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页码：1 / 3
页数：3
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