Very high antiferromagnetic stability of L10-type MnIr alloys

R. Y. Umetsu, Y. Okamoto, M. Miyakawa, K. Sasao, K. Fukamichi, A. Sakuma

Research output: Contribution to journalConference articlepeer-review

12 Citations (Scopus)


In MnIr alloy system, the highest Néel temperature TN among Mn alloy systems with an L10-type structure has been confirmed. The electronic specific heat coefficient γ is of 2-3mJmol -1K-2 and almost independent of the Ir concentration. It is considered that the L10-type MnIr alloys are pseudo-gap-type antiferromagnets from the electrical resistivity and specific heat data, but the value of γ is larger than that of the L10-type equiatomic MnPt alloy. These experimental results are in accord with the calculated band structures.

Original languageEnglish
Pages (from-to)790-791
Number of pages2
JournalJournal of Magnetism and Magnetic Materials
Publication statusPublished - 2004 May
EventProceedings of the International Conference on Magnetism - Rome, Italy
Duration: 2003 Jul 272003 Aug 1


  • Band structure
  • Effective exchange constant
  • Electronic specific heat coefficient
  • Néel temperature


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