Physical Review Letters · 1980 · 71 citations · 17 references
Natural SciencesChemistryMaterials SciencePhysical ChemistrySurface ChemistrySurface ScienceElectron DiffractionLow-energy Electron DiffractionSurface AdsorptionSurface Chemistry Of SolidsSurface CrystallographySurface PhysicsChemisorptionChemisorption AnalysisDisplacive TransformationsElectron Diffraction Of SurfacesLow-energy Electron SpectroscopySubstrate Distortion
A theoretical model is proposed for understanding the effect of H adsorption on the displacive transition of the W(001) surface. The coupling of the H adatoms to the substrate distortion leads to an enhancement of the displacive transition and a change in the overall symmetry. This is consistent with the features observed in low-energy electron diffraction for the H/W(001) chemisorption system.
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