Optical investigations on $Y_{2-x}B{i}_{x}R{u}_2{O}_7$: Electronic structure evolutions related to the metal-insulator transition

J. S. Lee, S. J. Moon, T. W. Noh +4

Optical conductivity spectra of cubic pyrochlore $Y_{2-x}B{i}_{x}R{u}_2{O}_7$ (0.0$\le${\it x}$\le$2.0) compounds are investigated. As a metal-insulator transition (MIT) occurs arou…