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Calculation of Optical Conductivity of YbB$_{12}$ using Realistic Tight-Binding Model

Tetsuro Saso
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Abstract

Based on the previously reported tight-binding model fitted to the LDA+U band calculation, optical conductivity of the prototypical Kondo insulator YbB$_{12}$ is calculated theoretically. Many-body effects are taken into account by the self-consistent second order perturbation theory. The gross shape of the optical conductivity observed in experiments are well described by the present calculation, including their temperature-dependences.

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Tetsuro Saso. 2004-09-03. Calculation of Optical Conductivity of YbB$_{12}$ using Realistic Tight-Binding Model. https://doi.org/10.1143/jpsj.73.2894

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