Prefer a chat interface with context about you and your work?
Magnetism-induced massive Dirac spectra and topological defects in the surface state of Cr-doped Bi<sub>2</sub>Se<sub>3</sub>-bilayer topological insulators
Proximity-induced magnetic effects on the surface Dirac spectra of topological insulators are investigated by scanning tunneling spectroscopic studies of bilayer structures consisting of undoped Bi2Se3 thin films on top of Cr-doped Bi2Se3 layers. For thickness of the top Bi2Se3 layer equal to or smaller than 3 quintuple layers, a spatially …