AVS 51st International Symposium
    Surface Science Friday Sessions
       Session SS2-FrM

Paper SS2-FrM5
The Study of Electronic Structures and Surface Segregation of Pt@sub 3@M Alloy (M= Ti, V, Cr, Mn, Fe, Co, Ni, and Zr)

Friday, November 19, 2004, 9:40 am, Room 210C

Session: Bimetallic Surface Chemistry and Structure
Presenter: B.S. Mun, Lawrence Berkeley National Laboratory
Authors: B.S. Mun, Lawrence Berkeley National Laboratory
M. Watanabe, Lawrence Berkeley National Laboratory & SPring-8 Project Team (RIKEN)
V. Stamenkovic, Lawrence Berkeley National Laboratory
N.M. Markovic, Lawrence Berkeley National Laboratory
P.N. Ross Jr., Lawrence Berkeley National Laboratory
Correspondent: Click to Email
The systematic study of surface electronic structures of Pt@sub 3@M (M= Ti, V, Cr, Mn, Fe, Co, Ni, and Zr) polycrystalline alloys are presented with high resolution photoemission spectroscopy. The positions of local d-band center from valence band density of state (DOS) measurements are carefully monitored before and after annealing process. Concurrently, the presence and magnitude of surface segregation are measured with angle resolved core-level photoemission spectroscopy. The correlation between the d-band center of DOS and its chemical properties are discussed.