1985 | OriginalPaper | Buchkapitel
Long- and Short-Range Order Fluctuations in the H/W(100) System
verfasst von : Roy F. Willis
Erschienen in: The Structure of Surfaces
Verlag: Springer Berlin Heidelberg
Enthalten in: Professional Book Archive
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The surface reconstruction phase transformations of W(100) can be understood in terms of periodic lattice distortion instabilities. A mechanism of non-linearly coupled phonon soft modes produces a system of antiphase domain walls which can be viewed as a “soliton superlattice”. Many aspects of the behavior of W(100) with variation in temperature and hydrogen coverage can be understood in terms of long- and short-range order fluctuations of this lattice dynamical model.