arXivDaily arXiv每日学术速递 周一至周五更新
北美退伍军人节(Veterans Day),12 日无更新
arXiv 1207.3281cond-mat.mes-hall
收藏

导体和绝缘体中的热自旋积累

Thermal Spin-Accumulation in Electric Conductors and Insulators

J. -E. Wegrowe, H. -J. Drouhin, D. Lacour

摘要:

最近的一些测量自旋相关的电压的解释,其中导电不发挥作用,提出了一些新的基本问题的影响自旋相关的热流。本文提出了一个双自旋通道模型来描述电导体和绝缘体中自旋相关热载流子的非平衡效应。结果表明,无论是电导体还是电绝缘体,只有在任意长的距离上,热流才能产生热自旋积累。导出了两种情况下的热自旋积累扩散方程,并描述了基于自旋能斯特效应的热自旋积累探测原理。

英文摘要:

The interpretation of some recent measurements of spin-dependent voltage for which the electric conduction does not play a role rises some new fundamental questions about the effects of spin-dependent heat currents. A two spin-channel model is proposed in order to describe the effect of out-of-equilibrium spin-dependent heat carriers in electric conductors and insulators. It is shown that thermal spin-accumulation can be generated by the heat currents only over an arbitrarily long distance for both electric conductors or electric insulators. The diffusion equations for thermal spin-accumulation are derived in both cases, and the principle of its detection based on Spin-Nernst effect is described.

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。

↑