Spin Seebeck mechanical force

Kazuya Harii, Yong Jun Seo, Yasumasa Tsutsumi, Hiroyuki Chudo, Koichi Oyanagi, Mamoru Matsuo, Yuki Shiomi, Takahito Ono, Sadamichi Maekawa, Eiji Saitoh

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Electric current has been used to send electricity to far distant places. On the other hand, spin current, a flow of electron spin, can in principle also send angular momentum to distant places. In a magnet, there is a universal spin carrier called a spin wave, a wave-type excitation of magnetization. Since spin waves exhibit a long propagation length, it should be able to send angular momentum that can generate torque and force at a distant place: a new function of magnets. Here we observe mechanical angular momentum transmission and force generation due to spin waves injected into Y3Fe5O12 by the spin-Seebeck effect. The spin-wave current, transmitted through a Y3Fe5O12 micro cantilever, was found to create a mechanical force on the cantilever as a non-local reaction of the spin-Seebeck effect. Spin-wave current can be generated remotely even in open circuits, and it can be used to drive micro mechanical devices.

Original languageEnglish
Article number2616
JournalNature communications
Volume10
Issue number1
DOIs
Publication statusPublished - 2019 Dec 1

ASJC Scopus subject areas

  • Chemistry(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Physics and Astronomy(all)

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  • Cite this

    Harii, K., Seo, Y. J., Tsutsumi, Y., Chudo, H., Oyanagi, K., Matsuo, M., Shiomi, Y., Ono, T., Maekawa, S., & Saitoh, E. (2019). Spin Seebeck mechanical force. Nature communications, 10(1), [2616]. https://doi.org/10.1038/s41467-019-10625-y