E. Zhukova, B. Gorshunov, A. Azarevich, Alexey V. Bogach, V. Filipov, N. Shitsevalova, G. Komandin, A. Muratov, Y. Aleshchenko, N. Sluchanko
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Terahertz-Infrared Spectroscopy of Tm0.19 Yb0.81 B12 Dodecaboride
First detailed measurements of terahertz-infrared electrodynamic response of high-quality single-crystalline Tm0.19 Yb0.81 B12 dodecaboride with dynamic charge stripes are performed at temperatures 5–300 K. Dramatic temperature changes in the dynamic conductivity spectra are observed, single-particle and collective excitations identified and their origin is discussed in terms of metal-insulator transition.