Direct Evidence for the Dirac-Cone Topological Surface States in Ternary Chalcogenide TlBiSe2

Takafumi Sato, Kouji Segawa, Hua Guo +4

We have performed high-resolution angle-resolved photoemission spectroscopy on TlBiSe2, which is a member of the ternary chalcogenides theoretically proposed as candidates for a ne…