Bulk and interfacial scatterings in current-perpendicular-to-plane giant magnetoresistance with Co2Fe (Al0.5Si0.5) Heusler alloy layers and Ag spacer

T. M. Nakatani, T. Furubayashi, S. Kasai, H. Sukegawa, Y. K. Takahashi, S. Mitani, K. Hono

研究成果: Article査読

123 被引用数 (Scopus)

抄録

We report the transport properties of a current-perpendicular-to-plane giant magnetoresistance (CPP-GMR) device with Co2Fe (Al0.5 Si0.5) (CFAS) Heusler alloy ferromagnetic layers and a Ag spacer layer. The CPP-GMR devices showed relatively high ΔRA values and MR ratios up to 17 m μ m2 and 80% at 14 K, and 8 m μ m2 and 34% at 290 K. The spin diffusion length ∼3 nm and the bulk spin asymmetry ∼0.77 for the CFAS alloy at 14 K were estimated by the Valet-Fert model, indicating a large contribution of the interfacial scattering.

本文言語English
論文番号212501
ジャーナルApplied Physics Letters
96
21
DOI
出版ステータスPublished - 2010 5 24
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(その他)

フィンガープリント

「Bulk and interfacial scatterings in current-perpendicular-to-plane giant magnetoresistance with Co<sub>2</sub>Fe (Al<sub>0.5</sub>Si<sub>0.5</sub>) Heusler alloy layers and Ag spacer」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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