{ "id": "1705.08224", "version": "v1", "published": "2017-05-23T13:06:02.000Z", "updated": "2017-05-23T13:06:02.000Z", "title": "Valley Edelstein Effect in Monolayer Transition Metal Dichalcogenides", "authors": [ "Katsuhisa Taguchi", "Yuki Kawaguchi", "Yukio Tanaka", "Kam Tuen Law" ], "comment": "5 pages, 5 figures", "categories": [ "cond-mat.mes-hall" ], "abstract": "Monolayer transition metal dichalcogenides (MTMDs) exhibit spin-orbit coupling (SOC) called Ising SOC which polarizes electron spins to opposite out-of-plane directions for electrons in opposite valleys. We predict the emergence of the valley Edelstein Effect (VEE), which is an electric-field-induced spin polarization effect, in the MTMDs. We found an unconventional valley-dependent response in which the spin-polarization is parallel to the applied electric field and the spin-polarization is opposite at opposite valleys due to the Ising SOC. This is in sharp contrast to usual Edelstein effect in which the induced spin-polarization is perpendicular to the applied electric field. We attribute the VEE to the valley Hall effect and Ising SOC. Experimental schemes to detect the VEE are also considered.", "revisions": [ { "version": "v1", "updated": "2017-05-23T13:06:02.000Z" } ], "analyses": { "keywords": [ "monolayer transition metal dichalcogenides", "valley edelstein effect", "applied electric field", "ising soc", "opposite valleys" ], "note": { "typesetting": "TeX", "pages": 5, "language": "en", "license": "arXiv", "status": "editable" } } }