Spin injection efficiency through the pumping in epitaxial Co2MnSi/Pt thin film

Y. Sasaki; S. Sugimoto; Y. K. Takahashi; S. Kasai

doi:10.1063/5.0008393

Spin injection efficiency through the pumping in epitaxial Co₂MnSi/Pt thin film

Y. Sasaki, S. Sugimoto, Y. K. Takahashi, S. Kasai

研究成果: Article › 査読

6 被引用数 (Scopus)

抄録

The spin injection efficiencies in epitaxial Co2MnSi (CMS)/Pt thin films were investigated in spin pumping configuration. The inverse spin Hall (effect) voltage significantly depends on the post-annealing temperature Ta of CMS, which shows one order larger values than those of Fe and CoFe at Ta = 400 °C. The effective spin mixing conductance derived by the analytical model reaches 6.5 × 1019 m-2. Our findings suggest that the Co-based Heusler alloys could be promising material candidates as the spin injection source with spin pumping.

本文言語	English
論文番号	085311
ジャーナル	AIP Advances
巻	10
号	8
DOI	https://doi.org/10.1063/5.0008393
出版ステータス	Published - 2020 8月 1
外部発表	はい

ASJC Scopus subject areas

物理学および天文学（全般）

文献へのアクセス

10.1063/5.0008393

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引用スタイル

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title = "Spin injection efficiency through the pumping in epitaxial Co2MnSi/Pt thin film",

abstract = "The spin injection efficiencies in epitaxial Co2MnSi (CMS)/Pt thin films were investigated in spin pumping configuration. The inverse spin Hall (effect) voltage significantly depends on the post-annealing temperature Ta of CMS, which shows one order larger values than those of Fe and CoFe at Ta = 400 °C. The effective spin mixing conductance derived by the analytical model reaches 6.5 × 1019 m-2. Our findings suggest that the Co-based Heusler alloys could be promising material candidates as the spin injection source with spin pumping. ",

author = "Y. Sasaki and S. Sugimoto and Takahashi, {Y. K.} and S. Kasai",

note = "Funding Information: This work was partially supported by the Japan Society for the Promotion Science, KAKENHI Grant No. 17K18892, and JST, PRESTO Grant No. JPMJPR18L3, Japan. We would like to thank Y. Miura for the various discussions. Publisher Copyright: {\textcopyright} 2020 Author(s).",

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doi = "10.1063/5.0008393",

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AU - Sasaki, Y.

AU - Sugimoto, S.

AU - Takahashi, Y. K.

AU - Kasai, S.

N1 - Funding Information: This work was partially supported by the Japan Society for the Promotion Science, KAKENHI Grant No. 17K18892, and JST, PRESTO Grant No. JPMJPR18L3, Japan. We would like to thank Y. Miura for the various discussions. Publisher Copyright: © 2020 Author(s).

PY - 2020/8/1

Y1 - 2020/8/1

N2 - The spin injection efficiencies in epitaxial Co2MnSi (CMS)/Pt thin films were investigated in spin pumping configuration. The inverse spin Hall (effect) voltage significantly depends on the post-annealing temperature Ta of CMS, which shows one order larger values than those of Fe and CoFe at Ta = 400 °C. The effective spin mixing conductance derived by the analytical model reaches 6.5 × 1019 m-2. Our findings suggest that the Co-based Heusler alloys could be promising material candidates as the spin injection source with spin pumping.

AB - The spin injection efficiencies in epitaxial Co2MnSi (CMS)/Pt thin films were investigated in spin pumping configuration. The inverse spin Hall (effect) voltage significantly depends on the post-annealing temperature Ta of CMS, which shows one order larger values than those of Fe and CoFe at Ta = 400 °C. The effective spin mixing conductance derived by the analytical model reaches 6.5 × 1019 m-2. Our findings suggest that the Co-based Heusler alloys could be promising material candidates as the spin injection source with spin pumping.

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