{ "id": "2010.13137", "version": "v1", "published": "2020-10-25T15:32:21.000Z", "updated": "2020-10-25T15:32:21.000Z", "title": "Absence of spin current generation in Ti/FeCoB bilayers with strong interfacial spin-orbit coupling", "authors": [ "Lijun Zhu", "Robert A. Buhrman" ], "categories": [ "cond-mat.mes-hall", "cond-mat.mtrl-sci" ], "abstract": "We report a quantitative investigation of the absence/presence of spin current generation by interfacial spin-orbit coupling (ISOC) at a normal metal/ferromagnet (NM/FM) interface. Utilizing the Ti/FeCoB bilayers which are unique for the negligible spin Hall effect and strong tunable ISOC, we establish direct experimental evidence that there is no significant spin current generation at NM/FM interface via spin-orbit filtering effect or Rashba-Edelstein effect even when the ISOC is stronger than that of a typical Pt/FM interface and can promote strong perpendicular magnetic anisotropy. This result also suggests that 3d Ti has minimal orbital Hall effect.", "revisions": [ { "version": "v1", "updated": "2020-10-25T15:32:21.000Z" } ], "analyses": { "keywords": [ "spin current generation", "strong interfacial spin-orbit coupling", "ti/fecob bilayers", "promote strong perpendicular magnetic anisotropy" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }