THERMAL STABILITY AND PERPENDICULAR ANISOTROPY OF AMORPHOUS TbFeCo FILMS

The perpendicular anisotopy,coercivity and Kerr rotation angle of the amorphous Tb_(32)Fe_(54)Co_(14) films were studied.The X-ray,electron diffraction,XPS and AES profile con- firmed that no obvious change in their amorphous structure and oxygen concentration is ob- served after annealing at 100℃,while their properties alter evidently under bending stress.It seems to be believed that the perpendicular anisotropy in the Tb_(32)Fe_(54)Co_(14) films mainly arises from the induced stress during preparation and the magnetostriction coupling stress,as well as,the thermal instability of the film relates closely to the stress relaxation during annealing.