Magnetic properties of ferromagnetic shape memory alloys Ni 2-xCuxMnGa

Takeshi Kanomata, Takuji Nozawa, Daisuke Kikuchi, Hironori Nishihara, Keiichi Koyama, Kazuo Watanabe

Research output: Contribution to journalArticlepeer-review

23 Citations (Scopus)

Abstract

Magnetic measurements on Ni2-xCuxMnGa with 0 ≦ x ≦ 0.8 are made in the temperature range between 4.2 K and 440 K. A phase diagram of Ni2-xCuxMnGa is determined from the results of the temperature dependence of the initial permeability. The Curie temperature TC increases with the Cu concentration x. The martensitic and reverse martensitic transformation temperatures decrease abruptly with x. It is deduced that the substitution for Ni by Cu in Ni2 MnGa promotes to localize the magnetic moment of Mn atom.

Original languageEnglish
Pages (from-to)151-157
Number of pages7
JournalInternational Journal of Applied Electromagnetics and Mechanics
Volume21
Issue number3-4
DOIs
Publication statusPublished - 2005

Keywords

  • Ferromagnetic shape memory alloy
  • Magnetic moment
  • NiCuMnGa
  • Phase diagram
  • Phase transformation

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Electrical and Electronic Engineering

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