Electronic structure of a Pt-Ge surface alloy

Authors
Fukutani, K Murata, Y Brillo, J Kuhlenbek, H Freund, HJ Taguchi, M
Citation
K. Fukutani et al., Electronic structure of a Pt-Ge surface alloy, SURF SCI, 464(2-3), 2000, pp. 48-56
Citations number
46
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
SURFACE SCIENCE
ISSN journal
00396028 → ACNP
Volume
464
Issue
2-3
Year of publication
2000
Pages
48 - 56
Database
ISI
SICI code
0039-6028(20001001)464:2-3<48:ESOAPS>2.0.ZU;2-1
Abstract
The structural and electronic properties of a Pt(lll)-Ge surface alloy are studied by scanning tunneling microscope and angle-resolved photoemission s pectroscopy. The electronic band structure in the T-L direction was measure d and compared with that of Pt(lll). The crystal field parameters of 10 Dq and xi were evaluated to be 1.77 eV and 0.73 eV respectively. Alloying with Ge was found to reduce 10 Dq and enhance xi compared with pure Pt(lll). (C ) 2000 Elsevier Science B.V. All rights reserved.