Supercurrent-induced charge-spin conversion in spin-split superconductors
We study spin-polarized quasiparticle transport in a mesoscopic superconductor with a spin-splitting field in the presence of coflowing supercurrent. In such a system, the nonequilibrium state is characterized by charge, spin, energy, and spin-energy modes. Here we show that in the presence of both...
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| Veröffentlicht in: | Physical review. B 2018-07, Vol.98 (2), p.024516 |
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| creator | Aikebaier, Faluke Silaev, Mihail A Heikkilä, T Heikkilä |
| description | We study spin-polarized quasiparticle transport in a mesoscopic superconductor with a spin-splitting field in the presence of coflowing supercurrent. In such a system, the nonequilibrium state is characterized by charge, spin, energy, and spin-energy modes. Here we show that in the presence of both spin splitting and supercurrent, all these modes are mutually coupled. As a result, the supercurrent can convert charge imbalance, which in the presence of spin splitting decays on a relatively short scale, to a long-range spin accumulation decaying only via inelastic scattering. This effect enables coherent charge-spin conversion controllable by a magnetic flux, and it can be detected by studying different symmetry components of the nonlocal conductance signal. |
| doi_str_mv | 10.1103/PhysRevB.98.024516 |
| format | Article |
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In such a system, the nonequilibrium state is characterized by charge, spin, energy, and spin-energy modes. Here we show that in the presence of both spin splitting and supercurrent, all these modes are mutually coupled. As a result, the supercurrent can convert charge imbalance, which in the presence of spin splitting decays on a relatively short scale, to a long-range spin accumulation decaying only via inelastic scattering. This effect enables coherent charge-spin conversion controllable by a magnetic flux, and it can be detected by studying different symmetry components of the nonlocal conductance signal.</description><identifier>ISSN: 2469-9950</identifier><identifier>EISSN: 2469-9969</identifier><identifier>DOI: 10.1103/PhysRevB.98.024516</identifier><language>eng</language><publisher>College Park: American Physical Society</publisher><subject>Coherent scattering ; Conversion ; Coupled modes ; Inelastic scattering ; Magnetic flux ; Mesoscopic superconductors ; Resistance ; Splitting</subject><ispartof>Physical review. 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This effect enables coherent charge-spin conversion controllable by a magnetic flux, and it can be detected by studying different symmetry components of the nonlocal conductance signal.</description><subject>Coherent scattering</subject><subject>Conversion</subject><subject>Coupled modes</subject><subject>Inelastic scattering</subject><subject>Magnetic flux</subject><subject>Mesoscopic superconductors</subject><subject>Resistance</subject><subject>Splitting</subject><issn>2469-9950</issn><issn>2469-9969</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><recordid>eNo9jktPwzAQhC0EElXpH-AUibPLrh078REqHpUqgXicKzvZ0FSVHeykEv-eBBB72ZlPmp1l7BJhiQjy-nn3lV7oeLs05RJErlCfsJnIteHGaHP6rxWcs0VKewBADaYAM2Pr16GjWA0xku956-uhojqrdjZ-EE9d67Mq-CPF1AafjW5CIz-0fZZ-kmGK9CGmC3bW2EOixd-es_f7u7fVI988PaxXNxveIcqeu7KwYny7xlw1UllDhDk5K8EqBbUoHIBobCNLlM5WjkpnNZbCamksoJVzdvV7t4vhc6DUb_dhiH6s3AoURS6mkd-v-1Jp</recordid><startdate>20180725</startdate><enddate>20180725</enddate><creator>Aikebaier, Faluke</creator><creator>Silaev, Mihail A</creator><creator>Heikkilä, T Heikkilä</creator><general>American Physical Society</general><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>H8D</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>20180725</creationdate><title>Supercurrent-induced charge-spin conversion in spin-split superconductors</title><author>Aikebaier, Faluke ; Silaev, Mihail A ; Heikkilä, T Heikkilä</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-p113t-b87a2110d145f35a9ee14eba30a550d27b002faf3813bacbe8ba6182a639a01a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Coherent scattering</topic><topic>Conversion</topic><topic>Coupled modes</topic><topic>Inelastic scattering</topic><topic>Magnetic flux</topic><topic>Mesoscopic superconductors</topic><topic>Resistance</topic><topic>Splitting</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Aikebaier, Faluke</creatorcontrib><creatorcontrib>Silaev, Mihail A</creatorcontrib><creatorcontrib>Heikkilä, T Heikkilä</creatorcontrib><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Physical review. 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| language | eng |
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| source | American Physical Society Journals |
| subjects | Coherent scattering Conversion Coupled modes Inelastic scattering Magnetic flux Mesoscopic superconductors Resistance Splitting |
| title | Supercurrent-induced charge-spin conversion in spin-split superconductors |
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