Coupling-decoupling of conducting topological surface states in thick Bi${}_2$Se${}_3$ single crystals

Amit Jash, Sayantan Ghosh, A. Bharathi +1

Sensitive ac susceptibility measurements of a topological insulator, Bi${}_2$Se${}_3$ single crystal, using mutual two coil inductance technique (Ref. 32) shows coupling and decoupling…