Topological surface states in the Kondo insulator YbB${}_{12}$ revealed via planar tunneling spectroscopy

A. Gupta, A. Weiser, L. H. Greene +8

Planar tunneling spectroscopy of the Kondo insulator SmB${}_6$ suggests that an interaction between the surface Dirac fermions and the bulk spin excitons results in incompletely prot…