Calculation of Optical Conductivity of YbB12 using Realistic Tight-binding Model
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Based on the previously reported tight-binding model fitted to the LDA+U band calculation, optical conductivity of the prototypical Kondo insulator YbB<SUB>12</SUB> 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.
- Journal of the Physical Society of Japan
Journal of the Physical Society of Japan 73(10), 2894-2899, 2004
THE PHYSICAL SOCIETY OF JAPAN