Magnetic and structural properties of metamagnetic MnCo0.92Fe0.08Ge compound

Kosuke Ozono, Yoshifuru Mitsui, Masahiko Hiroi, Rie Y. Umetsu, Kohki Takahashi, Kazuyuki Matsubayashi, Yoshiya Uwatoko, Keiichi Koyama

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The magnetic and structural properties of ferromagnetic MnCo0.92Fe0.08Ge were investigated by magnetization and X-ray powder diffraction measurements in magnetic fields up to 5 T. The compound showed first-order transition between the paramagnetic and ferromagnetic state with a thermal hysteresis of approximately 24 K, which was accompanied by the martensitic transformation from the hexagonal Ni2In-type structure to the orthorhombic TiNiSi-type structure in the vicinity of 275 K. The cell volume expanded by 4.1% during the martensitic transformation. The magnetic moment of MnCo0.92Fe0.08Ge was estimated to be 111Am2 kg-1 (3.7μB/f.u.) at 10 K. The compound showed both metamagnetic transition and magnetic field-induced martensitic transformation.

Original languageEnglish
Pages (from-to)316-320
Number of pages5
JournalMaterials Transactions
Volume57
Issue number3
DOIs
Publication statusPublished - 2016

Keywords

  • High magnetic field
  • Martensitic transformation
  • Metamagnetic transition
  • MnCoGe
  • Powder X-ray diffraction

ASJC Scopus subject areas

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

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