Enhancement of the spin pumping efficiency by spin wave mode selection

C. W. Sandweg, Y. Kajiwara, Kazuya Ando, E. Saitoh, B. Hillebrands

Research output: Contribution to journalArticle

97 Citations (Scopus)

Abstract

The spin pumping efficiency of standing spin wave modes in a rectangular Y3 Fe5 O12 /Pt sample has been investigated by means of inverse spin-Hall effect (ISHE). Standing spin waves drive spin pumping, the generation of spin currents from magnetization precession, into the Pt layer which is converted into a detectable voltage due to the ISHE. We discovered that the spin pumping efficiency is significantly higher for standing surface spin waves, hybridized with thickness modes, rather than for volume spin wave modes. The results suggest that the use of higher-mode surface spin waves allows for the fabrication of an efficient spin-current injector.

Original languageEnglish
Article number252504
JournalApplied Physics Letters
Volume97
Issue number25
DOIs
Publication statusPublished - 2010 Dec 20
Externally publishedYes

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magnons
pumping
augmentation
Hall effect
injectors
precession
magnetization
fabrication
electric potential

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Enhancement of the spin pumping efficiency by spin wave mode selection. / Sandweg, C. W.; Kajiwara, Y.; Ando, Kazuya; Saitoh, E.; Hillebrands, B.

In: Applied Physics Letters, Vol. 97, No. 25, 252504, 20.12.2010.

Research output: Contribution to journalArticle

Sandweg, CW, Kajiwara, Y, Ando, K, Saitoh, E & Hillebrands, B 2010, 'Enhancement of the spin pumping efficiency by spin wave mode selection', Applied Physics Letters, vol. 97, no. 25, 252504. https://doi.org/10.1063/1.3528207
Sandweg, C. W. ; Kajiwara, Y. ; Ando, Kazuya ; Saitoh, E. ; Hillebrands, B. / Enhancement of the spin pumping efficiency by spin wave mode selection. In: Applied Physics Letters. 2010 ; Vol. 97, No. 25.
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