Internal pressure in superconducting Cu intercalated Bi${}_2$Se${}_3$

Amit Ribak, Khanan B. Chashka, Elias Lahoud +7

Angle-resolved photoemission spectroscopy is used to study the band-structure of superconducting electrochemically intercalated Cu${}_x$Bi${}_2$Se${}_3$. We find that in these samples th…