Spin-Charge Conversion Effects and Anomalous Optical Responses of Spin-Orbit Systems |
| G. Tataraa, b
aRIKEN Center for Emergent Matter Science (CEMS), Wako, Saitama, Hirosawa, 2-1, 351-0198, Japan bRIKEN Cluster for Pioneering Research (CPR), Wako, Saitama 351-0198, Japan |
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| In this short review, spin-charge conversion effects induced by spin-orbit interaction are discussed from theoretical viewpoints. Spin Hall effect is formulated in terms of a single response function of spin density for an applied electric field, where the diffusion equation is not required for description and no ambiguity associated with spin current arises. The spin-charge conversion effects meaning the mixing of the electric and magnetic fields lead to various anomalous optical responses, such as negative refraction and directional dichroism, as shall be studied in detail for the Rashba spin-orbit interaction case. |
DOI:10.12693/APhysPolA.135.1215 topics: spintronics, spin-charge conversion, electromagnetic cross correlation, metamaterial, Doppler shift |