Abstract

The formation of the excitation spectra of the ground state for Kondo insulators like YbB₁₂, CeFe₂Al₁₀ has been studied and analyzed in terms of correspondence between cooperative and local effects. Experimental results concerning different types of substitutions for the rare earth and d-metal sublattices are discussed on the basis of model calculations. It is shown how the transformation from Kondo insulator to heavy fermions occurs in the f-electron excitation spectra of CeFe₂Al₁₀.

中文翻译：

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Kondo 绝缘体 YbB12 和 CeFe2Al10 中自旋能隙形成的协同和局部特征

摘要

_{近藤绝缘体如YbB 12}、CeFe ₂ Al ₁₀的基态激发光谱的形成已经根据协同效应和局部效应的对应关系进行了研究和分析。在模型计算的基础上讨论了关于稀土和d-金属亚晶格的不同类型替代的实验结果。在CeFe ₂ Al _10的f电子激发光谱中显示了从 Kondo 绝缘体到重费米子的转变是如何发生的。