High power all-metal spin torque oscillator using full Heusler Co2(Fe,Mn)Si

Takeshi Seki; Yuya Sakuraba; Hiroko Arai; Masaki Ueda; Ryo Okura; Hiroshi Imamura; Koki Takanashi

doi:10.1063/1.4895024

High power all-metal spin torque oscillator using full Heusler Co₂(Fe,Mn)Si

Takeshi Seki, Yuya Sakuraba, Hiroko Arai, Masaki Ueda, Ryo Okura, Hiroshi Imamura, Koki Takanashi

金属材料研究所・物質創製研究部

研究成果: Article › 査読

29 被引用数 (Scopus)

抄録

We showed the high rf power (P_out) emission from an all-metal spin torque oscillator (STO) with a Co₂Fe_0.4Mn_0.6Si (CFMS)/Ag/CFMS giant magnetoresistance (GMR) stack, which was attributable to the large GMR effect thanks to the highly spin-polarized CFMS. The oscillation spectra were measured by varying the magnetic field direction, and the perpendicular magnetic field was effective to increase P_outand the Q factor. We simultaneously achieved a high output efficiency of 0.013%, a high Q of 1124, and large frequency tunability. CFMS-based all-metal STO is promising for overcoming the difficulties that conventional STOs are confronted with.

本文言語	English
論文番号	092406
ジャーナル	Applied Physics Letters
巻	105
号	9
DOI	https://doi.org/10.1063/1.4895024
出版ステータス	Published - 2014 9月 1

ASJC Scopus subject areas

物理学および天文学（その他）

文献へのアクセス

10.1063/1.4895024

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引用スタイル

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T1 - High power all-metal spin torque oscillator using full Heusler Co2(Fe,Mn)Si

AU - Seki, Takeshi

AU - Sakuraba, Yuya

AU - Arai, Hiroko

AU - Ueda, Masaki

AU - Okura, Ryo

AU - Imamura, Hiroshi

AU - Takanashi, Koki

PY - 2014/9/1

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