Atomic and Electronic Structures of Cd_0.96Zn_0.04Te(110) Surface

X-Ray diffraction is used to analyse the lattice structure of CdCd_0.96Zn_0.04Te (CZT), and the lattice constant is measured to be 0.647nm. The atomic structure of the clean CZT(110) surface obtained by Ar⁺ etching in vacuum is observed by low-energy electron diffraction, where no surface reconstruction is discovered. Angle-resolved photoemission spectroscopy was used to characterize the surface state of the clean CZT (110) surface, by which we find a 1.5-eV-wide surface band with the peak at 0.9eV below the Fermi energy containing about 6.9×10¹⁴ electrons/cm², approximately one electron per surface atom.