论文标题
散装光生效应：计算电场中二阶旋转易感性的计算
Bulk photospin effect: Calculation of electric spin susceptibility to second order in an electric field
论文作者
论文摘要
我们计算以自旋轨道耦合为二阶的Bloch电子的电旋转敏感性。我们发现，可以使用线性极化电场在大部分非磁反应材料中产生非平衡自旋极化，但该过程取决于带之间的连贯性并产生加热。在某些情况下，有可能避免用圆极化加热。标准的Edelstein效应和旋转方向效应在形式主义内的适当限制中恢复。最后，金属的电旋转易感性与费米海的自旋多重矩成正比，该旋转多极矩占据了低频自旋响应。
We compute the electric spin susceptibility of Bloch electrons with spin-orbit coupling to second order. We find that it is possible to generate a nonequilibrium spin polarization in the bulk of non-magnetic inversion-symmetric materials using linearly polarized electric fields, but the process depends on interband coherence and produces heating. It may be possible to avoid heating with circular polarization in certain scenarios. The standard Edelstein effect and spin orientation effects are recovered in appropriate limits within the formalism. Finally, the electric spin susceptibility of metals has contributions proportional to spin multipole moments of the Fermi sea that dominate the low frequency spin response.
