Magnetic, transport and thermal properties of single crystal Co2FeGa

P. Chen*, G. H. Wu, Xixiang Zhang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

The magnetic, transport and thermal properties of single crystal Co2FeGa have been investigated. The small coercivity 20 Oe and saturation field 4000 Oe of Co2FeGa sample at temperature 5 K indicates that the single crystal is magnetically soft. The resistivity (ρ) behaves according to ρ ∼ T1/2 power law below temperature T = 40 K, which is due to electron-electron interaction effects in the presence of disorder. The thermal conductivity of Co2FeGa single exhibits anomalous temperature dependence above 50 K, i.e., the conductivity increases with the temperature, or dκ/dT > 0. We conclude that this anomalous thermal conductivity is due to the strong atomic disorder between the Fe and Co atoms.

Original languageEnglish (US)
Pages (from-to)52-56
Number of pages5
JournalJournal of Alloys and Compounds
Volume454
Issue number1-2
DOIs
StatePublished - Apr 24 2008

Keywords

  • Crystal growth
  • Disordered system
  • Heat conduction
  • Magnetic measurements

ASJC Scopus subject areas

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

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