Temperature Dependence of Magneto-Optical Effects in Nickel Thin Films
Temperature Dependence of Magneto-Optical Effects in Nickel Thin Films
复制标题
镍薄膜磁光效应的温度依赖性
DOI：
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发表时间：
1977
期刊：
影响因子：
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通讯作者：
Y. Nakagawa
中科院分区：
文献类型：
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作者：
T. Goto;M. Hasegawa;Tamio Nishinomiya;Y. Nakagawa
利用He-Ne激光（λ=632.8 nm）在略高于居里点T c的温度下测量了铁磁镍薄膜的法拉第旋转和磁圆二色性。假设磁光参数q1和q2与磁化强度成正比，无论磁化强度是自发的还是由外加磁场引起的，都可以满意地分析tc附近的结果。在较低的温度下发现与比例有轻微的偏差；q1和q2的温度系数都略大于自发磁化的温度系数。
The Faraday rotation and magnetic circular dichroism in thin films of ferromagnetic nickel are measured with He-Ne laser light (λ=632.8 nm) up to a temperature slightly above the Curie point T c . The results near T c can satisfactorily be analyzed on the assumption that the magneto-optical parameters Q 1 and Q 2 are proportional to the magnetization, regardless of whether the magnetization is spontaneous or induced by applied fields. Slight deviations from the proportionality are found at lower temperatures; temperature coefficients of both Q 1 and Q 2 are somewhat larger than those of the spontaneous magnetization.