High-pressure synthesis of a new ferromagnetic compound, CrGa2Sb2

W. Sakakibara, Y. Hayashi, H. Takizawa

Research output: Contribution to journalLetterpeer-review

8 Citations (Scopus)

Abstract

A new intermetallic compound, CrGa2Sb2, has been synthesized by a direct reaction from Cr and GaSb at 6.3 GPa and 600 °C using a belt-type high-pressure apparatus. The compound crystallizes into an orthorhombic MnGe4-type structure with the space group Iba2 (no. 45). The structure was refined by the Rietveld analysis of the powder X-ray diffraction data and the lattice constant was determined to be a = 1.1781(5) nm, b = 0.5968(2) nm, c = 0.5902(2) nm. The structure consists of -Cr-Cr-Cr- linear chains parallel to the c-axis. The compound exhibits an itinerant-electron ferromagnetic behavior with the Curie temperature of 345 K.

Original languageEnglish
Pages (from-to)L14-L17
JournalJournal of Alloys and Compounds
Volume496
Issue number1-2
DOIs
Publication statusPublished - 2010 Apr 30

Keywords

  • Crystal structure
  • High-pressure
  • Magnetically ordered materials
  • X-ray diffraction

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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