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Magnonic spin Joule heating and rectification effects
Nordita SU.
Inst Solid State Phys, Chernogolovka, Moscow 142432, Russia.;Moscow Inst Phys & Technol, Dolgoprudny, Moscow 141700, Russia.;Natl Res Univ Higher, Sch Econ, Moscow 101000, Russia..
Univ Autonoma Madrid, Dept Fis Teor Mat Condensada, Madrid 28049, Spain.;Condensed Matter Phys Ctr IFIMAC, Madrid 28049, Spain..
2022 (English)In: Physical Review B, ISSN 2469-9950, E-ISSN 2469-9969, Vol. 106, no 14, article id 144411Article in journal (Refereed) Published
Abstract [en]

Nonlinear devices, such as transistors, enable contemporary computing technologies. We theoretically investigate nonlinear effects, bearing a high fundamental scientific and technical relevance, in magnonics with emphasis on superconductor-ferromagnet hybrids. Accounting for a finite magnon chemical potential, we theoretically demonstrate magnonic spin Joule heating, the spin analog of conventional electronic Joule heating. Besides suggesting a key contribution to magnonic heat transport in a broad range of devices, it provides insights into the thermal physics of nonconserved bosonic excitations. Considering a spin-split superconductor self-consistently, we demonstrate its interface with a ferromagnetic insulator to harbor large tunability of spin and thermal conductances. We further demonstrate hysteretic rectification I-V characteristics in this hybrid, where the hysteresis results from the superconducting state bistability.

Place, publisher, year, edition, pages
American Physical Society (APS) , 2022. Vol. 106, no 14, article id 144411
National Category
Condensed Matter Physics
Identifiers
URN: urn:nbn:se:kth:diva-321301DOI: 10.1103/PhysRevB.106.144411ISI: 000870987800004Scopus ID: 2-s2.0-85139724668OAI: oai:DiVA.org:kth-321301DiVA, id: diva2:1710717
Note

QC 20221114

Available from: 2022-11-14 Created: 2022-11-14 Last updated: 2022-11-14Bibliographically approved

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