INVESTIGATION ON FERROMAGNETIC $Mn_{1-x}Co_{x}Pt_{3}$ ORDERED ALLOYS

  • Kaneko, T. (Institute for Advanced Materials Processing, Tohoku University) ;
  • Fujimori, H. (Institute for Advanced Materials Processing, Tohoku University) ;
  • Yoshida, H. (Institute for Advanced Materials Processing, Tohoku University) ;
  • Watanabe, K. (IMR, Tohoku University) ;
  • Abe, S. (Institute for Advanced Materials Processing, Tohoku University) ;
  • Matsumoto, M. (Tohoku Gakuin University) ;
  • Yoshida, T. (IMR, Tohoku University) ;
  • Kanomata, T. (IMR, Tohoku University)
  • Published : 1995.10.01

Abstract

The magnetization of $Mn_{1-x}Co_{x}Pt_{3}$ ordered alloys was measured at various temperatures and the pressure effect on $T_{c}$ for X=0.25, 0.5 and 0.6 was examined. The X dependence of $T_{c}$ determined by Arott plot has a minimum near X=0.6. The field-cooling effect measurement for X=0.5 shows a reentrant spin glass behavior. It is found that there is a concentration showing no pressure dependence of $T_{c}$ between X=0.25 and 0.5. These magnetic properties are discussed with a rigid band model.

Keywords

References

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