High bulk spin scattering asymmetry in cpp spin valves with alternated monatomic [Fe/Co]n superlattice

Tomonori Mano, In Chang Qiu, Kousaku Miyake, Masaaki Doi, Satoko Kuwano, Toshiyuki Shima, Masashi Sahashi

研究成果: Article査読

6 被引用数 (Scopus)

抄録

We confirmed the structural properties of trilayered epitaxial films with AML [Fe/Co]n and Au spacer on Au electrode by RHEED and TEM. A considerably large △RA (2.61 mΩμm2) resistance area product was observed in all metallic current perpendicular-to-plane giant magneto-resistance (CPP-GMR) spin-valve elements by using alternate monatomic epitaxial [Fe/Co]n ferromagnetic layer with IrMn layer on the top. The estimated spin scattering asymmetry coefficient β and interface asymmetry coefficient γ was 0.81 and 0.43 ± 0.05, respectively. This value of β is higher than that of Fe50Co50/Cu laminated with Cu spacer or Heusler alloy which is largest value ever reported at room temperature.

本文言語English
論文番号5257071
ページ(範囲)3460-3463
ページ数4
ジャーナルIEEE Transactions on Magnetics
45
10
DOI
出版ステータスPublished - 2009 10

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 電子工学および電気工学

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