Spin-Orbit Proximity Effect in Bi/Co Multilayer: The Role of Interface Scattering
The Spin-Orbit Proximity Effect is the raise of Spin-Orbit Coupling at a layer near to the interface with a strong spin-orbit material. It has been seen in several system such as graphene and ferromagnetic layers. The control of the Spin-Orbit Coupling can be a pathway to discover novel and exotic p...
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| creator | Arthur Casa Nova Nonnig Alexandre da Cas Viegas Fabiano Mesquita da Rosa Pureur, Paulo Milton Andre Tumelero |
| description | The Spin-Orbit Proximity Effect is the raise of Spin-Orbit Coupling at a layer near to the interface with a strong spin-orbit material. It has been seen in several system such as graphene and ferromagnetic layers. The control of the Spin-Orbit Coupling can be a pathway to discover novel and exotic phases in superconductor and semimetallic systems. Here, we study the magnetoelectrical transport, i.e., magnetoresistance and anomalous Hall effect, in Cobalt/Bismuth multilayers looking for traces of spin-orbit proximity effect and evaluate the origin of such effect. Our results point for an increase of Spontaneous Magnetic Anisotropy of Resistivity and Anomalous Hall Resistivity at very low thicknesses of Cobalt. The analysis of the Anomalous Hall Resisitivity indicate that the Bismuth layers change the scattering mechanism of Hall effect to the extrinsic skew-scattering type, indicating that the spin-orbit proximity effect could be related to the elastic scattering of cobalt free carriers by bismuth sites at the interface. |
| doi_str_mv | 10.48550/arxiv.2207.04937 |
| format | Article |
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It has been seen in several system such as graphene and ferromagnetic layers. The control of the Spin-Orbit Coupling can be a pathway to discover novel and exotic phases in superconductor and semimetallic systems. Here, we study the magnetoelectrical transport, i.e., magnetoresistance and anomalous Hall effect, in Cobalt/Bismuth multilayers looking for traces of spin-orbit proximity effect and evaluate the origin of such effect. Our results point for an increase of Spontaneous Magnetic Anisotropy of Resistivity and Anomalous Hall Resistivity at very low thicknesses of Cobalt. The analysis of the Anomalous Hall Resisitivity indicate that the Bismuth layers change the scattering mechanism of Hall effect to the extrinsic skew-scattering type, indicating that the spin-orbit proximity effect could be related to the elastic scattering of cobalt free carriers by bismuth sites at the interface.</description><identifier>EISSN: 2331-8422</identifier><identifier>DOI: 10.48550/arxiv.2207.04937</identifier><language>eng</language><publisher>Ithaca: Cornell University Library, arXiv.org</publisher><subject>Bismuth ; Elastic scattering ; Electrical resistivity ; Electromagnetism ; Ferromagnetism ; Graphene ; Hall effect ; Magnetic anisotropy ; Magnetoresistance ; Magnetoresistivity ; Multilayers ; Physics - Materials Science ; Physics - Mesoscale and Nanoscale Physics ; Proximity ; Proximity effect (electricity) ; Spin-orbit interactions</subject><ispartof>arXiv.org, 2022-07</ispartof><rights>2022. 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| subjects | Bismuth Elastic scattering Electrical resistivity Electromagnetism Ferromagnetism Graphene Hall effect Magnetic anisotropy Magnetoresistance Magnetoresistivity Multilayers Physics - Materials Science Physics - Mesoscale and Nanoscale Physics Proximity Proximity effect (electricity) Spin-orbit interactions |
| title | Spin-Orbit Proximity Effect in Bi/Co Multilayer: The Role of Interface Scattering |
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