Disorder Driven Metal-Insulator Transition in BaPb${}_{1-x}$Bi${}_x$O${}_3$ and Inference of Disorder-Free Critical Temperature

Katherine Luna, Paula Giraldo-Gallo, Theodore Geballe +2

We performed point-contact spectroscopy tunneling measurements on single crystal BaPb${}_{1-x}$Bi${}_x$O${}_3$ for $x=0$, $0.19$, $0.25$, and $0.28$ at temperatures ranging from $T=2-40$…