POLARIZING EFFECTS OF MAGNETIZATION ON THE CRYSTALLIZATION OF CO100-XPX AMORPHOUS-ALLOYS

Results are presented on the microstructure and magnetic properties of samples obtained by crystallization of amorphous films of composition Co100-xPx (10 < x < 25). Microstructural studies by means of scanning electron microscopy, x-ray diffractometry, as well as magnetic measurements showed the presence of a well-defined texture in the cobalt crystallites of samples of composition given by x < 21, the easy axis direction of the amorphous samples being preserved during the crystallization. In these samples the thermal dependence of the coercive and anisotropy fields and of the remanence was studied. The crystallization product of samples of composition given by x > 21 is characterized by the presence of cobalt crystallites with random easy axes distribution. The polarizing effect of the magnetization was evidenced through the correlation between the two different types of microstructure and the presence or absence of magnetic order during the crystallization of the samples.