Magnetic Properties of Pd Metal and Pd-Rh and Pd-Ag Alloys Containing Co and Fe Atoms
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Magnetic properties of Pd metal and Pd-Rh and Pd-Ag alloys with the addition of Co and Fe atoms are analyzed by the itinerant model of 4d-electrons. It is assumed that dissolved atoms have localized magnetic moments and are distributed at random. Spin quantum number of the localized moment of the dissolved atom and a molecular field coefficient between 4d-electron and dissolved atom are estimated from the comparison between our theory and experiments. The values of spin quantum number for localized magnetic moments are estimated as 1 and 3/2 for Co and Fe atoms in these alloys. Making use of these values and the value of molecular field coefficient among 4d-electrons and the density of states curve, which were obtained before for Pd metal, the composition dependences of the magnetic moment and the Curie temperature and the temperature dependences of paramagnetic susceptibility for these alloys are numerically calculated. The obtained results can explain almost all experiments satisfactorily.
- 社団法人 日本物理学会の論文
社団法人 日本物理学会 | 論文
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