Yb 4f-Ta 5d Hybridization and Valence Evolution in Tetragonal Tungsten Bronze Ba(3-x)YbxTa5O15

Daisuke Takegami, Haruki Takei, Masato Yoshimura +2

Here we investigate the electronic structure of the tetragonal tungsten bronze Ba${}_{3-x}$Yb${}_x$Ta${}_5$O${}_{15}$ by making use of hard x-ray photoemission spectroscopy. The core lev…