Enhanced spin polarization of Co2MnGe Heusler alloy by substitution of Ga for Ge

B. S.D.Ch S. Varaprasad, A. Rajanikanth, Y. K. Takahashi, K. Hono

研究成果: Article査読

34 被引用数 (Scopus)

抄録

Point contact Andreev reflection (PCAR) measurements indicated that the conductive spin polarization of the Co2MnGe Heusler alloy was enhanced substantially by the substitution of Ga for Ge. While the spin polarization of the conductive electrons of Co2MnGe and Co 2MnGa was estimated to be around 0.6, that of the Co 2MnGe0.75Ga0.25 quaternary alloy was 0.74, the highest value measured by PCAR for Heusler alloys. Moreover, the alloy was found to be an L21 intermetallic compound having a high Curie temperature of 895 K.

本文言語English
論文番号023002
ジャーナルApplied Physics Express
3
2
DOI
出版ステータスPublished - 2010 2
外部発表はい

ASJC Scopus subject areas

  • 工学(全般)
  • 物理学および天文学(全般)

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