Abstract
The magnetization-induced uniaxial anisotropy in stabilized zero-magnetostrictive Per-malloy films is investigated by isothermal magnetic annealing at various temperatures above 300°C. The annealing kinetics are explained very well by a model assuming a continuous distribution of activation energy; the mean value of which is taken to be 2. 2eV, with a range of distribution of ±0. 13 eV, and with a frequency factor of 1014 sec-1. Thus the anneal-ing behavior may be interpreted as a reorientation of atom-pair ordering caused by the mi-gration of the thermal equilibrium vacancies, namely by self-diffusion.
