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

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

Research output: Contribution to journalArticle

41 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

    Fingerprint

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

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