Nonlinear σ model for disordered systems with intrinsic spin-orbit coupling
Virtanen, P., Bergeret, F. S., & Tokatly, I. V. (2022). Nonlinear σ model for disordered systems with intrinsic spin-orbit coupling. Physical Review B, 105(22), Article 224517. https://doi.org/10.1103/PhysRevB.105.224517
Julkaistu sarjassa
Physical Review BPäivämäärä
2022Tekijänoikeudet
© 2022 American Physical Society.
We derive the nonlinear σ model to describe diffusive transport in normal metals and superconductors with intrinsic spin-orbit coupling (SOC). The SOC is described via an SU(2) gauge field, and we expand the model to the fourth order in gradients to find the leading non-Abelian field-strength contribution. This contribution generates the spin-charge coupling that is responsible for the spin-Hall effect. We discuss how its symmetry differs from the leading quasiclassical higher-order gradient terms. We also derive the corresponding Usadel equation describing the diffusive spin-charge dynamics in superconducting systems. As an example, we apply the obtained equations to describe the anomalous supercurrent in dirty Rashba superconductors at arbitrary temperatures.
Julkaisija
American Physical Society (APS)ISSN Hae Julkaisufoorumista
2469-9950Asiasanat
Julkaisu tutkimustietojärjestelmässä
https://converis.jyu.fi/converis/portal/detail/Publication/150963318
Metadata
Näytä kaikki kuvailutiedotKokoelmat
Rahoittaja(t)
Suomen Akatemia; Euroopan komissioRahoitusohjelmat(t)
Akatemiahanke, SA
The content of the publication reflects only the author’s view. The funder is not responsible for any use that may be made of the information it contains.
Lisätietoja rahoituksesta
P.V. and F.S.B. acknowledge funding from EU's Horizon 2020 research and innovation program under Grant Agreement No. 800923 (SUPERTED). P.V. acknowledges funding from Academy of Finland Project 317118. I.V.T. acknowledges support by Grupos Consolidados UPV/EHU del Gobierno Vasco (Grant No. IT1249-19). F.S.B. and I.V.T acknowledge funding by the Spanish Ministerio de Ciencia e Innovacion (MICINN) (Projects PID2020-117671GB-I00 (SPIRIT) and PID2020-112811GB-I00). F.S.B thanks Professor Björn Trauzettel for his hospitality at Würzburg University, and the A. v. Humboldt Foundation for financial support. ...Lisenssi
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