COERCIVITY CONTRIBUTIONS AND THEIR TEMPERATURE-DEPENDENCE IN STRESS-ANNEALED AMORPHOUS-ALLOYS

We have examined the uniaxial anisotropy induced by stress-annealing i n amorphous or partially crystallized samples of ferromagnetic Fe-rich alloys. Several coercivity characteristics were measured and investig ated in the temperature range 10-300 K. The coercivity contribution du e to domain wall translations was found to be strongly dependent on th e amount of the crystalline phase and on the magnitude of the induced anisotropy. The coercivity contribution connected predominantly with t he domain nucleation appears to be independent of these two factors. A ll of the magnetic properties (magnetization, anisotropy and coercivit y parameters) of the studied alloys were very stable within the temper ature ranges investigated.