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THERMAL STABILITY AND PERPENDICULAR ANISOTROPY OF AMORPHOUS TbFeCo FILMS |
LU Jian;WANG Yinjun;MA Ruzhang Institute of Physics; Academia Sinica; Beijing University of Science and Technology Beijing LU Jian; Department No.2; Institute of Metallurgy; Shoudu Iron and Steel Company;Beijing 100085 |
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Cite this article:
LU Jian;WANG Yinjun;MA Ruzhang Institute of Physics; Academia Sinica; Beijing University of Science and Technology Beijing LU Jian; Department No.2; Institute of Metallurgy; Shoudu Iron and Steel Company;Beijing 100085. THERMAL STABILITY AND PERPENDICULAR ANISOTROPY OF AMORPHOUS TbFeCo FILMS. Acta Metall Sin, 1989, 25(6): 108-111.
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Abstract The perpendicular anisotropy, coercivity and Kerr rotation angle ofthe amorphous Tb_(32)Fe_(54)Co_(14) films were studied. The X-ray, electron diffraction,XPS and AES profile confirmed that no obvious change in their amorphous struc-ture and oxygen concentration is observed after annealing at 100℃, while theirproperties alter evidently under bending stress. It is believed that the perpendicularanisotropy in the Tb_(32)Fe_(54)Co_(14) film mainly arises from the induced stress duringpreparation and the magnetostriction coupling stress, as well as, the thermalinstability of the film is related closely to the stress relaxation during annealing.
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Received: 18 June 1989
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