Spatial mapping of spin pumping from magnetic insulator

Rieko Takemasa, Yuma Tateno, Kazuya Ando

研究成果: Article査読

2 被引用数 (Scopus)

抄録

We demonstrate the spatial mapping of the spin pumping from a magnetic insulator, yttrium iron garnet (YIG), using the inverse spin Hall effect. The inverse spin Hall effect in thin Pt wires placed on a YIG film enables local detection of the spin-current emission from the insulator, revealing spatially nonuniform spin pumping at various microwave excitation frequencies. We found that the spatial variation of the spin pumping is sensitive to the wavelength of the magnons responsible for the spin pumping as well as the thickness of the magnetic insulator. These findings provide an important information for studying spintronic phenomena in metal/insulator bilayers.

本文言語English
論文番号042404
ジャーナルApplied Physics Letters
110
4
DOI
出版ステータスPublished - 2017 1月 23

ASJC Scopus subject areas

  • 物理学および天文学(その他)

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