論文

査読有り
2019年10月1日

Thermal Spin-Valve Effect in Magnetic Multi-layered Nanowires

Journal of Superconductivity and Novel Magnetism
  • Nagarjuna Asam
  • ,
  • Kazuto Yamanoi
  • ,
  • Kohei Ohnishi
  • ,
  • Takashi Kimura

32
10
開始ページ
3109
終了ページ
3113
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1007/s10948-019-5016-5
出版者・発行元
SPRINGER

© 2019, Springer Science+Business Media, LLC, part of Springer Nature. We have investigated the influence of the spin-dependent scattering on the heat transports in NiFe/Cu/NiFe and Co/Cu/Co tri-layered nanowires. The thermal conductivity and its spin dependence for the tri-layered wires have been evaluated by using an integrated nano-sized thermo couple. We find that the thermal spin-valve effect is always approximately 8 times larger than the electrical spin-valve effect, namely giant magnetoresistance effect. The numerical simulation with the experimental results enable us to estimate the thermal conductivity for the tri-layered wire and its spin dependence. Surprisingly, the spin dependence of the thermal conductivity for the Co/Cu/Co wire is as high as 8%, which is much larger than the electrical one. This indicates a high potential application of the thermal spin-valve effect.


リンク情報
DOI
https://doi.org/10.1007/s10948-019-5016-5
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000497271800016&DestApp=WOS_CPL
Scopus
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85063193308&origin=inward
Scopus Citedby
https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85063193308&origin=inward

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