Atomic site preference, the Néel temperature and specific heat of β-Mn1-xRux alloys

K. Sasao, R. Y. Umetsu, K. Fukamichi

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

X-ray diffraction, magnetic susceptibility and specific heat measurements for β-Mn1-xRux alloys have been carried out. A single β-phase has been confirmed in the Ru concentration region below x = 0.28. From X-ray diffraction measurements, it is regarded that Ru atoms mainly occupy site 1 (8c site). In low Ru concentration regions, β-Mn1-xRux alloys behave as weakly antiferromagnetic alloys in itinerant-electron systems. In high Ru concentration ranges, on the contrary, the Néel temperature increases up to 150 K and a clear peak due to the magnetic transition is observed in the specific heat, implying that the magnetic characteristics approaches an intermediate state between the itinerant-electron and the localized-electron magnetic states.

Original languageEnglish
Pages (from-to)24-28
Number of pages5
JournalJournal of Alloys and Compounds
Volume325
Issue number1-2
DOIs
Publication statusPublished - 2001 Jul 26

Keywords

  • Crystal structure
  • Heat capacity
  • Magnetic measurements
  • Transition metal alloys

ASJC Scopus subject areas

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

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