Spectral densities in surface lattice dynamics at large wave vector

Journal Article · Thu Mar 31 23:00:00 EST 1983 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.27.4072· OSTI ID:6096282

Black, J E; Rahman, T S; Mills, D L

We formulate a method that may be used to calculate certain lattice-dynamical spectral density functions useful in the analysis of inelastic electron and atom scattering at crystal surfaces. The method is used to explore the (111) surface of a model fcc crystal with nearest-neighbor and next-nearest-neighbor central force interactions between the atoms. The results are compared with results from earlier studies of the lattice dynamics of such a crystal that have been obtained by the slab method.

• Research Organization: Department of Physics, Brock University, St. Catharines, Ontario L2S3A1, Canada
• OSTI ID: 6096282
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 27:7; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
656000 -- Condensed Matter Physics
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ATOMS
CONTAMINATION
CRYSTAL FACES
CRYSTAL LATTICES
CRYSTAL STRUCTURE
CRYSTALS
CUBIC LATTICES
DISPERSION RELATIONS
ELECTRONS
ELEMENTARY PARTICLES
ELEMENTS
FCC LATTICES
FERMIONS
FUNCTIONS
LEPTONS
METALS
NICKEL
OSCILLATION MODES
SCATTERING
SPECTRAL DENSITY
SPECTRAL FUNCTIONS
SURFACE PROPERTIES
TRANSITION ELEMENTS
VARIATIONS