Phase stability and magnetic properties of Co2(Ti1-xFex)Ga Heusler alloys

Akinari Okubo, Rie Y. Umetsu, Makoto Nagasako, Asaya Fujita, Ryosuke Kainuma, Kiyohito Ishida

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

The order-disorder phase transition temperature from L21 to B2 phase TtL 21 / B 2, the saturation magnetization Ms and the Curie temperature TC were investigated in Co2(Ti1-xFex)Ga. It was confirmed that TtL 21 / B 2 for 0.8 ≤ x ≤ 1.0 almost linearly decreases with increasing x, and Ms follows the generalized Slater-Pauling line in the middle region of x. TC also increases with increasing x, exhibiting an upward convexity. It is concluded that a relatively high TtL 21 / B 2, a high TC and a low Ms can be obtained in the present alloys.

Original languageEnglish
Pages (from-to)830-833
Number of pages4
JournalScripta Materialia
Volume59
Issue number8
DOIs
Publication statusPublished - 2008 Oct 1

Keywords

  • Differential scanning calorimetry (DSC)
  • Half-metal ferromagnets
  • Heusler phases
  • Magnetic properties
  • Order-disorder phenomena

ASJC Scopus subject areas

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

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