Magnetic Properties and Phase Diagram of Ni50Mn 50 - x Ga x / 2 In x / 2 Magnetic Shape Memory Alloys

Xiao Xu, Yasuki Yoshida, Toshihiro Omori, Takeshi Kanomata, Ryosuke Kainuma

Research output: Contribution to journalArticle

Abstract

Ni50Mn50-xGax/2Inx/2 magnetic shape memory alloys were systematically prepared, and the magnetic properties as well as the phase diagram, including atomic ordering, martensitic and magnetic transitions, were investigated. The B2–L21 order–disorder transformation showed a parabolic-like curve against the Ga+In composition. The martensitic transformation temperature was found to decrease with increasing Ga+In composition and to slightly bend downwards below the Curie temperature of the parent phase. Spontaneous magnetization was investigated for both parent and martensite alloys. The magnetism of martensite phase was found to show glassy magnetic behaviors by thermomagnetization and AC susceptibility measurements.

Original languageEnglish
Pages (from-to)371-379
Number of pages9
JournalShape Memory and Superelasticity
Volume2
Issue number4
DOIs
Publication statusPublished - 2016 Dec 1

Keywords

  • Ferromagnetic shape memory alloys
  • Martensitic transformation
  • Ni-Mn-Ga-In
  • Phase diagram
  • Spontaneous magnetization

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials

Fingerprint Dive into the research topics of 'Magnetic Properties and Phase Diagram of Ni<sub>50</sub>Mn <sub>50</sub> <sub>-</sub> <sub>x</sub> Ga <sub>x</sub> <sub>/</sub> <sub>2</sub> In <sub>x</sub> <sub>/</sub> <sub>2</sub> Magnetic Shape Memory Alloys'. Together they form a unique fingerprint.

  • Cite this