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Article: Thermoelectric response of spin polarization in Rashba spintronic systems
Title | Thermoelectric response of spin polarization in Rashba spintronic systems |
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Authors | |
Keywords | analytical solution Boltzmann equation Rashba spin–orbit coupling spin polarization thermoelectric response |
Issue Date | 2016 |
Citation | Frontiers of Physics, 2016, v. 11, n. 3, article no. 117201 How to Cite? |
Abstract | Motivated by the recent discovery of a strongly spin–orbit-coupled two-dimensional (2D) electron gas near the surface of Rashba semiconductors BiTeX (X = Cl, Br, I), we calculate the thermoelectric responses of spin polarization in a 2D Rashba model. By self-consistently determining the energyand band-dependent transport time, we present an exact solution of the linearized Boltzmann equation for elastic scattering. Using this solution, we find a non-Edelstein electric-field-induced spin polarization that is linear in the Fermi energy EF when EF lies below the band crossing point. The spin polarization efficiency, which is the electric-field-induced spin polarization divided by the driven electric current, increases for smaller EF. We show that, as a function of EF, the temperature-gradient-induced spin polarization increases continuously to a saturation value when EF decreases below the band crossing point. As the temperature tends to zero, the temperature-gradient-induced spin polarization vanishes. |
Persistent Identifier | http://hdl.handle.net/10722/311411 |
ISSN | 2023 Impact Factor: 6.5 2023 SCImago Journal Rankings: 1.031 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Xiao, Cong | - |
dc.contributor.author | Li, Dingping | - |
dc.contributor.author | Ma, Zhongshui | - |
dc.date.accessioned | 2022-03-22T11:53:52Z | - |
dc.date.available | 2022-03-22T11:53:52Z | - |
dc.date.issued | 2016 | - |
dc.identifier.citation | Frontiers of Physics, 2016, v. 11, n. 3, article no. 117201 | - |
dc.identifier.issn | 2095-0462 | - |
dc.identifier.uri | http://hdl.handle.net/10722/311411 | - |
dc.description.abstract | Motivated by the recent discovery of a strongly spin–orbit-coupled two-dimensional (2D) electron gas near the surface of Rashba semiconductors BiTeX (X = Cl, Br, I), we calculate the thermoelectric responses of spin polarization in a 2D Rashba model. By self-consistently determining the energyand band-dependent transport time, we present an exact solution of the linearized Boltzmann equation for elastic scattering. Using this solution, we find a non-Edelstein electric-field-induced spin polarization that is linear in the Fermi energy EF when EF lies below the band crossing point. The spin polarization efficiency, which is the electric-field-induced spin polarization divided by the driven electric current, increases for smaller EF. We show that, as a function of EF, the temperature-gradient-induced spin polarization increases continuously to a saturation value when EF decreases below the band crossing point. As the temperature tends to zero, the temperature-gradient-induced spin polarization vanishes. | - |
dc.language | eng | - |
dc.relation.ispartof | Frontiers of Physics | - |
dc.subject | analytical solution | - |
dc.subject | Boltzmann equation | - |
dc.subject | Rashba spin–orbit coupling | - |
dc.subject | spin polarization | - |
dc.subject | thermoelectric response | - |
dc.title | Thermoelectric response of spin polarization in Rashba spintronic systems | - |
dc.type | Article | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1007/s11467-016-0566-5 | - |
dc.identifier.scopus | eid_2-s2.0-84977483583 | - |
dc.identifier.volume | 11 | - |
dc.identifier.issue | 3 | - |
dc.identifier.spage | article no. 117201 | - |
dc.identifier.epage | article no. 117201 | - |
dc.identifier.eissn | 2095-0470 | - |
dc.identifier.isi | WOS:000387551500011 | - |