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dc.contributor.authorOjajärvi, Risto
dc.contributor.authorManninen, Juuso
dc.contributor.authorHeikkilä, Tero T.
dc.contributor.authorVirtanen, Pauli
dc.date.accessioned2020-03-25T12:19:37Z
dc.date.available2020-03-25T12:19:37Z
dc.date.issued2020
dc.identifier.citationOjajärvi, R., Manninen, J., Heikkilä, T. T., & Virtanen, P. (2020). Nonlinear spin torque, pumping, and cooling in superconductor/ferromagnet systems. <i>Physical Review B</i>, <i>101</i>(11), Article 115406. <a href="https://doi.org/10.1103/PhysRevB.101.115406" target="_blank">https://doi.org/10.1103/PhysRevB.101.115406</a>
dc.identifier.otherCONVID_35106437
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/68327
dc.description.abstractWe study the effects of the coupling between magnetization dynamics and the electronic degrees of freedom in a heterostructure of a metallic nanomagnet with dynamic magnetization coupled with a superconductor containing a steady spin-splitting field. We predict how this system exhibits a nonlinear spin torque, which can be driven either with a temperature difference or a voltage across the interface. We generalize this notion to arbitrary magnetization precession by deriving a Keldysh action for the interface, describing the coupled charge, heat, and spin transport in the presence of a precessing magnetization. We characterize the effect of superconductivity on the precession damping and the antidamping torques. We also predict the full nonlinear characteristic of the Onsager counterparts of the torque, showing up via pumped charge and heat currents. For the latter, we predict a spin-pumping cooling effect, where the magnetization dynamics can cool either the nanomagnet or the superconductor.en
dc.format.mimetypeapplication/pdf
dc.languageeng
dc.language.isoeng
dc.publisherAmerican Physical Society
dc.relation.ispartofseriesPhysical Review B
dc.rightsIn Copyright
dc.subject.otherspin caloritronics
dc.subject.otherspin transfer torque
dc.titleNonlinear spin torque, pumping, and cooling in superconductor/ferromagnet systems
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-202003252542
dc.contributor.laitosFysiikan laitosfi
dc.contributor.laitosDepartment of Physicsen
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.description.reviewstatuspeerReviewed
dc.relation.issn2469-9950
dc.relation.numberinseries11
dc.relation.volume101
dc.type.versionpublishedVersion
dc.rights.copyright©2020 American Physical Society
dc.rights.accesslevelopenAccessfi
dc.relation.grantnumber321982
dc.relation.grantnumber800923
dc.relation.grantnumber800923
dc.relation.grantnumber317118
dc.relation.projectidinfo:eu-repo/grantAgreement/EC/H2020/800923/EU//SUPERTED
dc.subject.ysosuprajohteet
dc.subject.ysosuprajohtavuus
dc.subject.ysomagneetit
dc.subject.ysonanoelektroniikka
dc.format.contentfulltext
jyx.subject.urihttp://www.yso.fi/onto/yso/p9946
jyx.subject.urihttp://www.yso.fi/onto/yso/p9398
jyx.subject.urihttp://www.yso.fi/onto/yso/p2774
jyx.subject.urihttp://www.yso.fi/onto/yso/p26991
dc.rights.urlhttp://rightsstatements.org/page/InC/1.0/?language=en
dc.relation.doi10.1103/PhysRevB.101.115406
dc.relation.funderSuomen Akatemiafi
dc.relation.funderEuroopan komissiofi
dc.relation.funderSuomen Akatemiafi
dc.relation.funderAcademy of Finlanden
dc.relation.funderEuropean Commissionen
dc.relation.funderAcademy of Finlanden
jyx.fundingprogramAkatemiahanke, SAfi
jyx.fundingprogramFET Future and Emerging Technologies, H2020fi
jyx.fundingprogramAkatemiahanke, SAfi
jyx.fundingprogramAcademy Project, AoFen
jyx.fundingprogramFET Future and Emerging Technologies, H2020en
jyx.fundingprogramAcademy Project, AoFen
jyx.fundinginformationThis work wassupported by Academy of Finland Project No. 317118 and No.321982, the European Union’s Horizon 2020 Research andInnovation Framework Programme under Grant No. 800923(SUPERTED), and Jenny and Antti Wihuri Foundation.


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