far behind research groups in West Germany in the use of these techniques. Exciting new surface physics is coming from elastic and inelastic scattering experiments, for example, the soliton-like reconstruction of the (111) surface in gold, and the observation of a soft phonon on the (100) surface in tungsten that might be related to a reconstruction. At present, U.S. experimental physicists are just watching.
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Appendix D: Instrumentation ."
Materials Science and Engineering for the 1990s: Maintaining Competitiveness in the Age of Materials . Washington, DC: The National Academies Press,
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