Accession Number : ADA183794

Title :   Semiempirical Band Structure of PtGa2.

Descriptive Note : Technical rept. no. 3, Oct 86-Aug 87,

Corporate Author : CALIFORNIA UNIV LOS ANGELES

Personal Author(s) : Kim,Sehum ; Hsu,Li-Shing ; Williams,R S

PDF Url : ADA183794

Report Date : 25 Jul 1987

Pagination or Media Count : 7

Abstract : A semi-empirical band structure for PtGa2 was obtained by adjusting the AuGa2 parameters in the Mixed-Basis Band Structure Interpolation Scheme (MBBSIS) to obtain agreement between the calculated total Density-of-States (DOS) and X ray Photoemission Spectroscopy (XPS) data. Angle Resolved Photoemission Spectroscopy (ARPES) data collected from a PtGa2 (111) surface with a noble gas discharge lamp as excitation source were used to check the energies of the d-bands. The PtGa2 band structure is compared to those of both elemental Pt and Au, and the gold color of PtGa2 is explained in terms of its Au-like DOS. Keywords: Binary intermetallic compounds, Transition metal, Crystal field effects, AR, Color variation, Color absorption, Binding energy, Platinum compounds.

Descriptors :   *PLATINUM COMPOUNDS, BINARY COMPOUNDS, INTERMETALLIC COMPOUNDS, ABSORPTION, COLORS, PHOTOELECTRIC EMISSION, SPECTROSCOPY, TRANSITION METALS, NUCLEAR BINDING ENERGY, VARIATIONS, EXCITATION, SOURCES, X RAY SPECTROSCOPY

Subject Categories : Inorganic Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE