Large magnetocaloric effect of Mn3-xCoxGaC

T. Tohei, H. Wada, T. Kanomata

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Abstract

The magnetocaloric effect of Mn3-xCoxGaC has been investigated. Mn3GaC shows a first-order antiferromagnetic to ferromagnetic transition at Tt = 160 K. Large magnetocaloric effects of ΔSmag = 15 J/kgK, and ΔTad = 5.4 K were observed at the transition in an applied field of 2 T. The substitution of Co for Mn lowers Tt without significant loss of magnetocaloric effects. It was indicated that the system could cover a wide temperature range of 50-160 K by combining the compounds with various compositions from x = 0 to 0.05.

Original languageEnglish
Pages (from-to)e585-e586
JournalJournal of Magnetism and Magnetic Materials
Volume272-276
Issue numberSUPPL. 1
DOIs
Publication statusPublished - May 2004
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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