Electronic structure and optical properties of the HoCoSi and ErNiSi compounds |
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Authors: | Yu. V. Knyazev A. V. Lukoyanov Yu. I. Kuz’min S. Gupta K. G. Suresh |
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Abstract: | The electronic structure and the optical properties of the HoCoSi and ErNiSi compounds are studied. Spin-polarized band calculations are performed in the local electron density approximation corrected for the strong electron–electron interactions in the 4f shell of a rare-earth ion (LSDA + U method [11]). The optical constants are measured by ellipsometry in a wide wavelength range, and the frequency dependences of a number of spectral parameters are determined. The calculated densities of states are used to interpret the structural features of the interband optical conductivities of the intermetallic compounds. |
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