Optical conductivity of URu${}_2$Si${}_2$ in the Kondo Liquid and Hidden-Order Phases

R. P. S. M. Lobo, J. Buhot, M. A. Méasson +4

We measured the polarized optical conductivity of URu${}_2$Si${}_2$ from room temperature down to 5 K, covering the Kondo state, the coherent Kondo liquid regime, and the hidden-order…