JETP Letters

, Volume 100, Issue 4, pp 237–241 | Cite as

Atomic structure and phonons of a Pb ultrathin film on the Al(100) surface

Condensed Matter

Abstract

The atomic and phonon structures of a Pb ultrathin film on the Al(100) surface have been theoretically studied. Surface relaxation, local density of vibrational states, and polarization of the phonon modes of adatoms and atoms of a substrate have been discussed. It has been shown that the adsorption of Pb results in the oscillating relaxation of the surface of the substrate and warping of the structure in subsurface layers. Comparative analysis of the vibrational characteristics of the pure surface of the substrate and the surface with adatoms has shown that the adsorptive interaction in the system and its dynamic stability are governed by new vibrational modes that are not inherent in pure Al and Pb surfaces.

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Copyright information

© Pleiades Publishing, Inc. 2014

Authors and Affiliations

  • G. G. Rusina
    • 1
    • 2
  • S. D. Borisova
    • 1
    • 2
  • E. V. Chulkov
    • 3
  1. 1.Institute of Strength Physics and Materials Science, Siberian BranchRussian Academy of SciencesTomskRussia
  2. 2.Tomsk State UniversityTomskRussia
  3. 3.Departamento de Física de Materiales UPV/EHUDonostia International Physics Center (DIPC) and CFM, Centro Mixto CSIC-UPV/EHUSan SebastiánSpain

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