Electronic correlations and unconventional spectral weight transfer in BaFe${}_{2-x}$Co${}_x$As${}_2$

A. A. Schafgans, S. J. Moon, B. C. Pursley +7

We report an infrared optical study of the pnictide high-temperature superconductor BaFe${}_{1.84}$Co${}_{0.16}$As${}_2$ and its parent compound BaFe${}_2$As${}_2$. We demonstrate that…