Role of Chalcogen-p States in the Optical Response of Bulk PtSe2 and PtTe2

Ji Eun Lee, R. Mathew Roy, Premakumar Yanda +3

The type-II Dirac semimetals PtSe${}_2$ and PtTe${}_2$ are isostructural and isovalent layered compounds but exhibit distinct electronic properties. We measure the in-plane infrared re…