Surface Hall Effect and Nonlocal Transport in SmB6: Evidence for Surface Conduction
Surface Hall Effect and Nonlocal Transport in SmB6: Evidence for Surface Conduction
A topological insulator (TI) is an unusual quantum state in which the insulating bulk is topologically distinct from vacuum, resulting in a unique metallic surface that is robust against time-reversal invariant perturbations. These surface transport properties, however, remains difficult to be isolated from the bulk in existing TI crystals (Bi2Se3, …