Lattice dynamics of layered-structure compounds: PdTe/sub 2/

Journal Article · Sat Feb 15 04:00:00 EST 1986 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.33.2473· OSTI ID:5987015

Finlayson, T R; Reichardt, W; Smith, H G

A complete data set for the phonon dispersion curves of PdTe/sub 2/ along the (zeta00), (zetazeta0), and (00zeta) symmetry directions has been measured. A lattice-dynamical model consisting of axially symmetric Born--von Karman interactions to seventh-nearest neighbors together with shell-model contributions, introduced specifically to model dips in the low-energy optic branches in the vicinity of the GAMMA point, provides a reasonable fit to the measured dispersion curves. The results are discussed in relation to the known properties of PdTe/sub 2/ and the dispersion data already available for related layered-structure compounds.

• Research Organization: Solid State Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 5987015
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 33:4; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
656102 -- Solid State Physics-- Superconductivity-- Acoustic
Electronic
Magnetic
Optical
& Thermal Phenomena-- (-1987)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BORN-VON KARMAN THEORY
CHALCOGENIDES
COHERENT SCATTERING
CRYSTAL LATTICES
CRYSTAL STRUCTURE
CRYSTALS
DATA
DIFFRACTION
DISPERSION RELATIONS
ELECTRON DIFFRACTION
EXPERIMENTAL DATA
HEXAGONAL LATTICES
INFORMATION
LATTICE PARAMETERS
LAYERS
MEDIUM TEMPERATURE
NEUTRON DIFFRACTION
NUMERICAL DATA
PALLADIUM COMPOUNDS
PALLADIUM TELLURIDES
PHONONS
PHYSICAL PROPERTIES
PLASMA WAVES
PRESSURE DEPENDENCE
QUASI PARTICLES
SCATTERING
SUPERCONDUCTORS
TELLURIDES
TELLURIUM COMPOUNDS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE