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

Paper SS2-FrM7
The Study of Electronic Structures and Surface Segregation of Single Crystalline Pt@sub 3@Ni(100),(100),and (111)

Friday, November 19, 2004, 10:20 am, Room 210C

Session: Bimetallic Surface Chemistry and Structure
Presenter: M. Watanabe, Lawrence Berkeley National Laboratory
Authors: M. Watanabe, Lawrence Berkeley National Laboratory
B.S. Mun, Lawrence Berkeley National Laboratory
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 surface electronic structures of Pt@sub 3@Ni(100), (110), and (111) single crystalline samples are investigated with synchrotron-based photoemission spectroscopy. From the measurement of valence band spectrum, the d-band centers of density of state are estimated and compared before and after the annealing treatment. In addition, the core-level angle resolved photoemission technique is applied to estimate the segregation of Pt and Ni at the surface. The correlation between electronic structures of each index and its chemical properties are discussed.