Experimental inspection of a computationally-designed NiCrMnSi Heusler alloy with high Curie temperature

Y. Onodera, K. Elphick, T. Kanemura, T. Roy, T. Tsuchiya, M. Tsujikawa, K. Yoshida, Y. Nagai, S. Mizukami, A. Hirohata, M. Shirai

研究成果: Article査読

1 被引用数 (Scopus)

抄録

Nowadays advanced magnetic tunnel junction applications demand very high tunnel magnetoresistance at room temperature, thus it is quite important to explore high Curie temperature T c half-metallic Heusler alloys. In this article first-principles calculation unveiled that NiCrMnSi has a T c of 1200 K comparable to that of traditional Co2MnSi Heusler alloys, even though it does not contain a Co element. In addition, we examined whether NiCrMnSi Heusler phase films can be obtained by magnetron sputtering on MgO substrates. The results of the structural analysis and first-principles calculations indicated that the NiCrMnSi Heusler phase is metastable. A possible route to obtain a metastable NiCrMnSi Heusler alloy is to utilize appropriate templates.

本文言語English
論文番号073003
ジャーナルJapanese journal of applied physics
59
7
DOI
出版ステータスPublished - 2020 7 1

ASJC Scopus subject areas

  • 工学(全般)
  • 物理学および天文学(全般)

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