Heat-induced damping modification in yttrium iron garnet/platinum hetero-structures

M. B. Jungfleisch, T. An, Kazuya Ando, Y. Kajiwara, K. Uchida, V. I. Vasyuchka, A. V. Chumak, A. A. Serga, E. Saitoh, B. Hillebrands

Research output: Contribution to journalArticle

36 Citations (Scopus)

Abstract

We experimentally demonstrate the manipulation of magnetization relaxation utilizing a temperature difference across the thickness of an yttrium iron garnet/platinum hetero-structure: the damping is either increased or decreased depending on the sign of the temperature gradient. This effect might be explained by a thermally induced spin torque on the magnetization precession. The heat-induced variation of the damping is detected by microwave techniques as well as by a DC voltage caused by spin pumping into the adjacent Pt layer and the subsequent conversion into a charge current by the inverse spin Hall effect.

Original languageEnglish
Article number062417
JournalApplied Physics Letters
Volume102
Issue number6
DOIs
Publication statusPublished - 2013 Feb 11
Externally publishedYes

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yttrium-iron garnet
platinum
damping
heat
temperature gradients
magnetization
precession
Hall effect
torque
manipulators
pumping
direct current
microwaves
electric potential

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Jungfleisch, M. B., An, T., Ando, K., Kajiwara, Y., Uchida, K., Vasyuchka, V. I., ... Hillebrands, B. (2013). Heat-induced damping modification in yttrium iron garnet/platinum hetero-structures. Applied Physics Letters, 102(6), [062417]. https://doi.org/10.1063/1.4792701

Heat-induced damping modification in yttrium iron garnet/platinum hetero-structures. / Jungfleisch, M. B.; An, T.; Ando, Kazuya; Kajiwara, Y.; Uchida, K.; Vasyuchka, V. I.; Chumak, A. V.; Serga, A. A.; Saitoh, E.; Hillebrands, B.

In: Applied Physics Letters, Vol. 102, No. 6, 062417, 11.02.2013.

Research output: Contribution to journalArticle

Jungfleisch, MB, An, T, Ando, K, Kajiwara, Y, Uchida, K, Vasyuchka, VI, Chumak, AV, Serga, AA, Saitoh, E & Hillebrands, B 2013, 'Heat-induced damping modification in yttrium iron garnet/platinum hetero-structures', Applied Physics Letters, vol. 102, no. 6, 062417. https://doi.org/10.1063/1.4792701
Jungfleisch, M. B. ; An, T. ; Ando, Kazuya ; Kajiwara, Y. ; Uchida, K. ; Vasyuchka, V. I. ; Chumak, A. V. ; Serga, A. A. ; Saitoh, E. ; Hillebrands, B. / Heat-induced damping modification in yttrium iron garnet/platinum hetero-structures. In: Applied Physics Letters. 2013 ; Vol. 102, No. 6.
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