Coupling the Higgs mode and ferromagnetic resonance in spin-split superconductors with Rashba spin-orbit coupling
Abstract
We show that the Higgs mode of superconductors can couple with spin dynamics in the presence of a static spin-splitting field and Rashba spin-orbit coupling. The Higgs-spin coupling dramatically modifies the spin susceptibility near the superconducting critical temperature and consequently enhances the spin pumping effect in a ferromagnetic insulator/superconductor bilayer system. We show that this effect can be detected by measuring the magnon transmission rate and the magnon-induced voltage generated by the inverse spin Hall effect.
Main Authors
Format
Articles
Research article
Published
2022
Series
Subjects
Publication in research information system
Publisher
American Physical Society (APS)
The permanent address of the publication
https://urn.fi/URN:NBN:fi:jyu-202208254356Käytä tätä linkitykseen.
Review status
Peer reviewed
ISSN
2469-9950
DOI
https://doi.org/10.1103/PhysRevB.106.024514
Language
English
Published in
Physical Review B
Citation
- Lu, Y., Ojajärvi, R., Virtanen, P., Silaev, M. A., & Heikkilä, T. T. (2022). Coupling the Higgs mode and ferromagnetic resonance in spin-split superconductors with Rashba spin-orbit coupling. Physical Review B, 106(2), Article 024514. https://doi.org/10.1103/PhysRevB.106.024514
License
Funder(s)
European Commission
Research Council of Finland
Funding program(s)
FET Future and Emerging Technologies, H2020
Academy Project, AoF
FET Future and Emerging Technologies, H2020
Akatemiahanke, SA
Additional information about funding
This work was supported by Jenny and Antti Wihuri Foundation, and the Academy of Finland Project No. 317118 and the European Union's Horizon 2020 Research and Innovation Framework Programme under Grant No. 800923 (SUPERTED). Y.L. acknowledges Grant No. PID2020-114252GB-I00 (SPIRIT) funded by MCIN/AEI/10.13039/501100011033 and by “ERDF A way of making Europe”. This work is funded by the Education Department of the Basque Government via the IKUR strategy program 20-114252GB-I00 (SPIRIT).
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