Superconducting properties of under- and over-doped Ba${}_x$K${}_{1-x}$BiO${}_3$ perovskite oxide

D. Szczȩśniak, A. Z. Kaczmarek, R. Szczȩśniak +3

In the present study, we investigate the thermodynamic properties of the Ba${}_x$K${}_{1-x}$BiO${}_3$ (BKBO) superconductor in the under- ($x=0.5$) and over-doped ($x=0.7$) regime, w…