AVS 47th International Symposium
    Surface Science Monday Sessions
       Session SS3-MoM

Paper SS3-MoM7
Atomic Structure of Sulfide Natural Crystal Surfaces by Combined Photoelectron Imaging and Diffraction Methods

Monday, October 2, 2000, 10:20 am, Room 210

Session: Surface Science Opportunities and New Applications
Presenter: B.P. Tonner, University of Central Florida
Authors: E.M. Kneedler, Surface/Interface Inc.
X. Chen, University of Wisconsin, Milwaukee
S. Banerjee, University of Wisconsin, Milwaukee
E. Rotenberg, Lawrence Berkeley National Laboratory
B.P. Tonner, University of Central Florida
Correspondent: Click to Email
Natural surfaces of minerals play an important role in the chemistry of the environment. Advances in the sophistication of surface structural techniques makes it possible to tackle an atomic structure determination of such surfaces with some degree of confidence. We have studied a number of sulfur bearing mineral surfaces using high resolution x-ray photoelectron diffraction, and x-ray photoemission microscopy. A model system with a large unit cell, Cu(100)-S, is a starting point for evaluating the accuracy of photoelectron diffraction methods on complex surfaces. Results are also presented for natural crystals of galena (PbS), pyrite (iron sulfide), and some preliminary results of chalcopyrite.