GMR and soft magnetic properties of Ni-Mn alloys with dispersed ferromagnetic nano particles

T. Okazaki, T. Miyanaga, Y. Sakisaka, Satoshi Sugimoto, K. Yamada, Z. Honda

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

GMR and soft magnetic properties were investigated in nano-scale inhomogeneous Ni1-xMnx alloys (x = 0.20∼0.30), where ordered single-domain particles are distributed in disordered nonmagnetic or Ni-rich or Mn-rich matrices. The GMR of Ni3Mn alloy depends on the volume fraction of ordered domains ε. Maximum value of -1.8% is obtained at ε ∼ 0.2. Moreover, the GMR depends remarkably on x: GMR for 0.20 ≤ x ≤ 0.24 is small (Type I) and for 0.26 ≤ x ≤ 0.30 has a maximum of -6% at x = 0.30 (Type II . Types I and II are caused respectively by ferromagnetic and antiferromagnetic interactions between domains.

Original languageEnglish
Pages (from-to)150-161
Number of pages12
JournalReviews on Advanced Materials Science
Volume6
Issue number2
Publication statusPublished - 2004 May 1

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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