Low-temperature magnetization in Ni-rich g-Ni100ÀxÀyFexVy alloys
نویسندگان
چکیده
Detailed studies of the temperature dependence of the spontaneous magnetization have been made in eight different compositions of g-Ni1002x2yFexVy ~412 at. %) alloys require an additional Stoner T term ~for weak itinerant ferromagnets!. This indicates that the addition of more V gives the alloys a weak itinerant electron character. The range of temperature of the above analysis is much lower than 0.1TC for most of the alloys. Also, the Arrott plots near TC show a set of almost parallel isothermal lines supporting the presence of the Stoner term. Thus the present magnetization studies show convincingly a transition from the localized to the weak itinerant electron ferromagnetism in the high V (y>12 at. %) alloys.
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