THERMAL STABILITY AND PERPENDICULAR ANISOTROPY OF AMORPHOUS TbFeCo FILMS

Abstract

Abstract: 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.

Key words: amorphous TbFeCo film, perpendicular anisotropy, thermal stability

L(?) Jian WANG Yinjun Institute of Physics,Academia Sinica,Beijing,ChinaMA Ruzhang University of Science and Technology Beijing,Beijing,China LU Jian Dept.No.2,Institute of Metallurgy,Shoudu Iron and Steel Company,Beijing 100085,China. THERMAL STABILITY AND PERPENDICULAR ANISOTROPY OF AMORPHOUS TbFeCo FILMS[J]. Acta Metallurgica Sinica (English Letters), 1990, 3(9): 172-175.

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THERMAL STABILITY AND PERPENDICULAR ANISOTROPY OF AMORPHOUS TbFeCo FILMS

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