Magnetization process near the Curie temperature of a ferromagnetic Heusler alloy Co 2VGa

H. Nishihara, Y. Furutani, T. Wada, T. Kanomata, K. Kobayashi, R. Kainuma, K. Ishida, T. Yamauchi

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

The field dependence of the magnetization of a ferromagnetic Heusler alloy Co 2VGa has been measured close to the Curie temperature of 358 K up to an applied field of 50 kOe. Results for samples with different Curie temperatures of 351 K are also reported. The critical exponent δ has been determined to be 4.15 (0.05) for both samples. The value is different from either 5 predicted by the spin fluctuation theory by Takahashi or 3 derived by a conventional molecular field theory. Possible origins for the discrepancy from the theories are discussed.

Original languageEnglish
Pages (from-to)679-681
Number of pages3
JournalJournal of Superconductivity and Novel Magnetism
Volume24
Issue number1-2
DOIs
Publication statusPublished - 2011 Jan

Keywords

  • Co VGa
  • Curie temperature
  • Ferromagnet
  • Heusler alloy
  • Magnetization process

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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