Study on Physical Process of Surface Oxidation of Rare Earth-Transition Metal Amorphous Magneto-Optical Thin Films
来源期刊：Journal of Rare Earths1992年第4期
论文作者：沈德芳 金丽娜 俞祥游 王丽娟
文章页码：280 - 284
摘 要：<正> By using surface effects（Auger electron spectroscopy,X-ray photoelectron spectroscopy,polar Kerreffect）and volume effects（magnetization,torque curve）the physical process of surface oxidation of rareearth-transition metal amorphous magneto-optical thin films was studied in this paper.The rare earth elementsoxidize preferentially and rich at the film surface,and the transition metals deplete in oxidation layer.Fe2O3 inthe surface oxidation layer contributes to the planar magnetization,and thereby the anomalous peak appearsnear 180° on the torque curves and the amplitude of the peaks is related to the depth of surface oxidationlayers.The iron bonds to oxygen easier than the cobolt.RE-Co magneto-optieal thin films have good propertiesof resistance to oxidation and humidity.
沈德芳，金丽娜，俞祥游，王丽娟
摘 要：<正> By using surface effects（Auger electron spectroscopy,X-ray photoelectron spectroscopy,polar Kerreffect）and volume effects（magnetization,torque curve）the physical process of surface oxidation of rareearth-transition metal amorphous magneto-optical thin films was studied in this paper.The rare earth elementsoxidize preferentially and rich at the film surface,and the transition metals deplete in oxidation layer.Fe2O3 inthe surface oxidation layer contributes to the planar magnetization,and thereby the anomalous peak appearsnear 180° on the torque curves and the amplitude of the peaks is related to the depth of surface oxidationlayers.The iron bonds to oxygen easier than the cobolt.RE-Co magneto-optieal thin films have good propertiesof resistance to oxidation and humidity.
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