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Your search keyword '"María E. Dávila"' showing total 3 results
Start Over Author "María E. Dávila" Journal physical review b
3 results on '"María E. Dávila"'

2. Giant effect of electron and hole donation onSn∕Ge(111)andSn∕Si(111)surfaces

Author

M. C. Asensio, María E. Dávila, G. Le Lay, and José Avila

Subjects
Materials science, Silicon, Potassium, chemistry.chemical_element, Germanium, Electron, Condensed Matter Physics, Electronic, Optical and Magnetic Materials, Electronegativity, Adsorption, Nuclear magnetic resonance, chemistry, Physical chemistry, Local-density approximation, Tin
Published
2004
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3. Structural determination of Yb single-crystal films grown on W(110) using photoelectron diffraction

Author

Serguei L. Molodtsov, Clemens Laubschat, María E. Dávila, and M. C. Asensio

Subjects
Metal, Lanthanide, Core (optical fiber), Diffraction, Crystal, Materials science, Lattice constant, visual_art, Relaxation (NMR), visual_art.visual_art_medium, Analytical chemistry, Photon energy
Abstract

A quantitative analysis of the surface relaxation at the Yb(111) single-crystal films grown on W(110) has been undertaken applying energy-scan photoelectron diffraction technique using the two shifted components, i.e., surface and bulk of the lanthanide 4f core levels. Additional polar scans were recorded for a fixed photon energy along the crystal high-symmetry directions. The analysis of the data set following a trial and error fitting procedure confirmed a consistent fcc structure for all noncontaminated evaporated Yb films with the bulk lattice parameter corresponding to a value of a = (5.44′0.05) A, about 1% contracted respect to the bulk fcc Yb metal. A refinement of the structural analysis indicates an inward surface relaxation of the interlayer spacing for the first two top layers with respect to the bulk lattice parameter.

Published
2002
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