Spin Hall Magnetoresistance and Spin Nernst Magnetothermopower in a Rashba System: Role of the Inverse Spin Galvanic Effect
| Autor: | Cosimo Gorini, Ulrich Eckern, Michael Dzierzawa, Sebastian Tölle |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Magnetoresistance
General Physics and Astronomy 02 engineering and technology 01 natural sciences symbols.namesake Magnetization Condensed Matter::Materials Science 0103 physical sciences Nernst equation ddc:530 Boundary value problem spintronics spin caloritronics spin‐orbit interaction spin Hall magnetoresistance spin Nernst magnetothermopower 010306 general physics Spin-½ Physics Spin polarization Condensed matter physics 021001 nanoscience & nanotechnology Condensed Matter::Mesoscopic Systems and Quantum Hall Effect 530 Physik Ferromagnetism symbols Condensed Matter::Strongly Correlated Electrons 0210 nano-technology Fermi gas |
| Popis: | In ferromagnet/normal-metal bilayers, the sensitivity of the spin Hall magnetoresistance and the spin Nernst magnetothermopower to the boundary conditions at the interface is of central importance. In general, such boundary conditions can be substantially affected by current-induced spin polarizations. In order to quantify the role of the latter, we consider a Rashba two-dimensional electron gas with a ferromagnet attached to one side of the system. The geometry of such a system maximizes the effect of current-induced spin polarization on the boundary conditions, and the spin Hall magnetoresistance is shown to acquire a non-trivial and asymmetric dependence on the magnetization direction of the ferromagnet. |
| Databáze: | OpenAIRE |
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