Magnetic properties of amorphous Tb-Fe alloy films have been investigated for magneto-optic memory media applications. The perpendicular magnetic anisotropy, saturation magnetization, and Curie temperature were investigated in the samples deposited by vacuum evaporation at different substrate temperatures Ts. A very large value (2×107 erg/cc) of the uniaxial anisotropy constant Ku was found in the samples deposited at a high substrate temperature (400 °C), and it was found also that the saturation magnetization and Curie temperature exhibit a strong dependence on substrate temperature during the evaporation process.
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Kobayashi et al. (1983) studied this question.
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