Structural and magnetic properties of magnetic shape memory alloy Ni 46Mn41In13 under magnetic fields

Kenichi Abematsu, Rie Y. Umetsu, Ryosuke Kainuma, Takeshi Kanomata, Kazuo Watanabe, Keiichi Koyama

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

The structural and magnetic properties of Heusler alloy Ni 46Mn41In13 were studied by magnetization and X-ray powder diffraction measurements in the 4.5350K temperature range and in magnetic fields up to 5 T. The alloy undergoes martensitic transformation from a L21-type cubic structure with ac = 0.600nm at 293K to a six-layered monoclinic (6M) structure in the transition temperature of 160230 K. The lattice parameters for the 6M structure were estimated to be am = 0.441 nm, bm = 0.557 nm, cm = 1.30 nm, αm = 90.0°, βm = 94.0°, and γm = 90.0° at 75 K. In this transformation from the L21 to 6M structures, the cell volume contracts by 0.34% at 8K. In addition, we observed the magnetic field-induced reverse transformation of this alloy.

Original languageEnglish
Pages (from-to)477-481
Number of pages5
JournalMaterials Transactions
Volume55
Issue number3
DOIs
Publication statusPublished - 2014

Keywords

  • Ferromagnetic shape-memory alloys
  • Field-induced magnetic and structural transition
  • Heusler alloy
  • Martensitic transformation

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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