Abstract

Results are presented from investigating the electronic structure and optical properties of DyCuGe and HoCuGe compounds. Spin-polarized calculations of the band structure are made using the local spin density approximation that allows for strong electronic correlations in the 4f-shells of rare earth ions. The optical properties of these alloys are studied in a broad range of wavelengths via ellipsometry. The calculated electron densities of states are used to interpret the experimental energy dependences of optical conductivities in the region of interband light absorption.

中文翻译：

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RCuGe化合物的电子和光学性质（R = Dy，Ho）

摘要

通过研究DyCuGe和HoCuGe化合物的电子结构和光学性质可得出结果。使用局部自旋密度近似值进行能带结构的自旋极化计算，该近似值允许在稀土离子的4 f壳层中实现强电子相关。通过椭圆偏振法在广泛的波长范围内研究了这些合金的光学性能。计算出的态电子密度用于解释带间光吸收区域中光导率的实验能量依赖性。