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.

Report Date:

1987-07-25

Pagination or Media Count:

7.0

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