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- W2576852696 abstract "NaZn13型La（Fe，Si）13化合物随Si含量增加，相变性质由一级过渡为二级，化合物晶胞体积收缩，饱和磁化强度降低，居里温度升高. 其居里温度与晶胞体积之间的关系不能用Bethe-Slater曲线给出合理的解释. 本文利用添加间隙原子碳调节La（Fe，Si）13 化合物晶胞体积和居里温度的方法，系统研究了该化合物居里温度与晶胞体积之间的关系. 结果发现二者之间的变化规律遵循Jaccarino-Walker模型，即仅有5%甚至更少的3d电子被认为是真正的巡游电子，其余的3d 电子仍是局域的. 以极化的巡游电子为媒介，局域电子之间产生类似于Ruderman-Kittel-Kasuya-Yosida 的长程相互作用，相互作用的符号和大小与距离呈周期性震荡. 随Si 含量的增加，La（Fe，Si）13化合物巡游电子数目增加，化合物的居里温度由晶胞体积和巡游电子的浓度共同决定." @default.
- W2576852696 created "2017-01-26" @default.
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- W2576852696 date "2014-01-01" @default.
- W2576852696 modified "2023-09-25" @default.
- W2576852696 title "Curie temperature mechanism in La(Fe, Si)13 compound" @default.
- W2576852696 doi "https://doi.org/10.7498/aps.63.127501" @default.
- W2576852696 hasPublicationYear "2014" @default.
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