Magnetic Properties of Pt Metal Containing Co and Fe Atoms

Abstract

Standing on the band model the experimental data on the Curie temperature and magnetization for Pt metal containing Co and Fe atoms are analysed. It is assumed that 5d-electrons or Pt metal are itinerant and magnetic moments of the dissolved atoms are localized. The results obtained suggest that the values of spin quantum numbers of the localized moments and of the molecular field coefficient between the localized moments and 5d-electrons are not very different from those for Pd metal. The differences between the magnetic properties of Pd and Pt metals containing Co or Fe atoms are mainly due to the difference between the shapes of electronic density of states for these metals.