The surface valence band structure of the two phases of ZnSe(100)

• Published in: Surface science Vol. 401; no. 1; pp. L401 - L405
• Main Authors: Xue, J.Y, Stampfl, A.P.J, Wolfframm, D, Evans, D.A, Hollering, M, Ley, L, Riley, J.D, Leckey, R.C.G
• Format: Journal Article
• Language: English
• Published: Lausanne Elsevier B.V 20-05-1998; Amsterdam Elsevier Science; New York, NY
• Subjects: Angle-resolved photoemission; Clean metal, semiconductor, and insulator surfaces; Condensed matter: electronic structure, electrical, magnetic, and optical properties; Electron and ion emission by liquids and solids; impact phenomena; Electronic structure and electrical properties of surfaces, interfaces, thin films and low-dimensional structures; Exact sciences and technology; Low index single crystal surfaces; Photoemission and photoelectron spectra; Physics; Semiconducting surfaces; Surface and interface electron states; Surface electronic phenomena; Surface relaxation and reconstruction; Surface states, band structure, electron density of states; Zinc selenide; Angle-resolved photoemission; Zinc selenide; Semiconducting surfaces; Surface relaxation and reconstruction; Low index single crystal surfaces; Surface electronic phenomena; Band structure; Inorganic compounds; Semiconductor materials; Transition element compounds; Zinc selenides; Experimental study; Photoelectron spectroscopy; Surface states
• ISSN: 0039-6028; 1879-2758
• DOI: 10.1016/S0039-6028(98)00079-X

The valence band structures of the (2×1) and c(2×2) phases of ZnSe{100} have been mapped using angle-resolved photoelectron spectroscopy. The surface band structures of each phase are different and are due mainly to surface selenium. A number of surface-related states are observed around 1
eV, 2
eV and 3–4
eV, the most intense of which is observed around 1
eV across the entire Brillouin zone measured; the “2×” periodicity was just observable in the energy dispersion along the [110] direction of the (2×1) phase.