Spin pumping without three-magnon splitting in polycrystalline Bi 1Y 2Fe 5O 12/Pt bilayer structure

Ryo Iguchi, Kazuya Ando, Ryo Takahashi, Toshu An, Eiji Saitoh, Tetsuya Sato

研究成果: Article査読

27 被引用数 (Scopus)

抄録

Spin pumping at various precession frequencies has been investigated in a polycrystalline Bi-substituted yttrium iron garnet (Bi.YIG)/Pt bilayer structure by means of inverse spin Hall effect (ISHE) with comparison to a single crystal La-substituted yttrium iron garnet (La.YIG)/Pt bilayer structure which shows three-magnon splitting. As precession frequency decreases, the magnitude of pumped spin currents in the polycrystalline sample continuously increases to high magnitude comparable to the highest magnitude in the single crystal sample while that in the single crystal sample decreases below a threshold frequency of three-magnon splitting. By comparing ISHE voltage with microwave absorption intensity in the polycrystalline sample, we verify that the large magnitude of the pumped spin currents is maintained at low frequencies through the suppression of three-magnon splitting.

本文言語English
論文番号103004
ジャーナルJapanese journal of applied physics
51
10
DOI
出版ステータスPublished - 2012 10

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

フィンガープリント 「Spin pumping without three-magnon splitting in polycrystalline Bi <sub>1</sub>Y <sub>2</sub>Fe <sub>5</sub>O <sub>12</sub>/Pt bilayer structure」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

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