The Structure of Surfaces II

Dr. Michel A. Van Hove is a Staff Scientist in the Materials Sciences Division and the Advanced Light Source of the Lawrence Berkeley National Laboratory in Berkeley, California, USA, and an Adjunct Professor in the Physics Department of the University of California in Davis, California, USA. His research interests focus on the structural, chemical, electronic and magnetic properties of surfaces, interfaces, and related nano-structures. The emphasis is on modelling experimental techniques toextract such information from actual materials.

This book collects together selected papers presented at the Second Interna tional Conference on the Structure of Surfaces (ICSOS-II). The conference was held at the Royal Thopical Institute in Amsterdam, The Netherlands, June 22-25, 1987. It was held in part to celebrate the 25th anniversary of the NEVAC (Netherlands Vacuum Society). The International Organizing Committee members were: M. A. Van Hove (Chairman) J. F. van der Veen (Vice-Chairman) W. F. van der Weg (Treasurer) D. L. Adams A. M. Bradshaw M. J. Cardillo D. J. Chadi J. E. Demuth J. Eckert G. Ertl S. Ino D. A. King B. I. Lundqvist J. B. Pendry Y. Petroff J. R. Smith G. A. Somorjai J. Stohr S. Y. Tong X. D. Xie The ICSOS meetings serve to assess the status of surface structure determination and the relationship between surface or interface structures and physical or chemical properties of interest. The papers in this book cover: theoretical and experimental structural techniques; structural aspects of metal and semiconductor surfaces, including relaxations and reconstruc tions, as well as adsorbates and epitaxial layers; phase transitions in two dimensions, roughening and surface melting; defects, disorder and surface morphology. Amsterdam, Berkeley J. F. van der Veen October 1987 M. A. Van Hove v Acknow ledgements We wish to acknowledge the many organizations and individuals whose contributions made possible the Second International Conference on the Structure of Surfaces and these Proceedings.

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I Techniques.- I. 1 Theory.- I. 2 Experiment.- II Clean Metals.- II. 1 Relaxation and Reconstruction.- II. 2 Alloys.- III Adsorbates on Metals.- IV Clean Semiconductors.- V Adsorbates on Semiconductors.- VI Epitaxy.- VII Phase Transitions.- VII. 1 Transitions in Two Dimensions.- VII. 2 Roughening.- VII. 3 Surface Melting.- VIII Defects, Disorder and Morphology.- Index of Contributors.