Upper limit for the anharmonicity of the cation modes in the superconducting Chevrel-phase compounds PbMo/sub 6/S/sub 8/ and SnMo/sub 6/S/sub 8/
Journal Article
·
· J. Low Temp. Phys.; (United States)
PbMo/sub 6/S/sub 8/ and SnMo/sub 6/S/sub 8/ have low-lying phonon modes involving mainly motion of the Pb or Sn cation. It has long been believed that these cation modes are highly anharmonic. By examining the inelastic neutron scattering, x-ray diffraction, and magnetic susceptibility data in the literature, however, it is shown that these modes are nearly harmonic at room temperature. There is no evidence that they are anharmonic at low temperature. From the observed frequency of the cation modes at room temperature, the delocalization of the cation perpendicular to the trigonal axis calculated. The calculated delocalization agrees well with that indicated by the x-ray diffraction data.
- Research Organization:
- Univ. of Illinois, Urbana-Champaign (USA)
- OSTI ID:
- 5417770
- Journal Information:
- J. Low Temp. Phys.; (United States), Journal Name: J. Low Temp. Phys.; (United States) Vol. 68:5/6; ISSN JLTPA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Characterization and reproducibility of some Chevrel-compound samples: SnMo/sub 6/S/sub 8/ and PbMo/sub x/S/sub 8/ (x = 6. 00, 6. 20, and 6. 35)
Inelastic neutron scattering studies of the phonon spectra of Chevrel-phase superconductors. [SnMo/sub 6/S/sub 8/, PbMo/sub 6/S/sub 8/, Mo/sub 6/Se/sub 8/, Pb/sub 1/. /sub 2/Mo/sub 6/Se/sub 8/]
High field properties of SnMo/sub 6/S/sub 8/ and PbMo/sub 6/S/sub 8/ ribbons prepared using a vapor transport technique
Journal Article
·
Sat Oct 01 00:00:00 EDT 1983
· Phys. Rev. B: Condens. Matter; (United States)
·
OSTI ID:5615999
Inelastic neutron scattering studies of the phonon spectra of Chevrel-phase superconductors. [SnMo/sub 6/S/sub 8/, PbMo/sub 6/S/sub 8/, Mo/sub 6/Se/sub 8/, Pb/sub 1/. /sub 2/Mo/sub 6/Se/sub 8/]
Conference
·
Wed Dec 31 23:00:00 EST 1975
·
OSTI ID:7341361
High field properties of SnMo/sub 6/S/sub 8/ and PbMo/sub 6/S/sub 8/ ribbons prepared using a vapor transport technique
Conference
·
Mon Sep 01 00:00:00 EDT 1986
·
OSTI ID:6973045
Related Subjects
36 MATERIALS SCIENCE
360603* -- Materials-- Properties
656100 -- Condensed Matter Physics-- Superconductivity
657002 -- Theoretical & Mathematical Physics-- Classical & Quantum Mechanics
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BARYONS
BORN-OPPENHEIMER APPROXIMATION
CATIONS
CHALCOGENIDES
CHARGED PARTICLES
COHERENT SCATTERING
DIFFRACTION
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTRON-PHONON COUPLING
ELEMENTARY PARTICLES
FERMIONS
HADRONS
HAMILTONIANS
HARMONICS
INELASTIC SCATTERING
IONS
LEAD COMPOUNDS
LEAD SULFIDES
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
MATHEMATICAL OPERATORS
MOLYBDENUM COMPOUNDS
MOLYBDENUM SULFIDES
NEUTRON DIFFRACTION
NEUTRONS
NUCLEONS
OSCILLATION MODES
OSCILLATIONS
PERTURBATION THEORY
PHYSICAL PROPERTIES
QUANTUM OPERATORS
REFRACTORY METAL COMPOUNDS
SCATTERING
SULFIDES
SULFUR COMPOUNDS
SUPERCONDUCTIVITY
TIN COMPOUNDS
TIN SULFIDES
TRANSITION ELEMENT COMPOUNDS
X-RAY DIFFRACTION
360603* -- Materials-- Properties
656100 -- Condensed Matter Physics-- Superconductivity
657002 -- Theoretical & Mathematical Physics-- Classical & Quantum Mechanics
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BARYONS
BORN-OPPENHEIMER APPROXIMATION
CATIONS
CHALCOGENIDES
CHARGED PARTICLES
COHERENT SCATTERING
DIFFRACTION
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTRON-PHONON COUPLING
ELEMENTARY PARTICLES
FERMIONS
HADRONS
HAMILTONIANS
HARMONICS
INELASTIC SCATTERING
IONS
LEAD COMPOUNDS
LEAD SULFIDES
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
MATHEMATICAL OPERATORS
MOLYBDENUM COMPOUNDS
MOLYBDENUM SULFIDES
NEUTRON DIFFRACTION
NEUTRONS
NUCLEONS
OSCILLATION MODES
OSCILLATIONS
PERTURBATION THEORY
PHYSICAL PROPERTIES
QUANTUM OPERATORS
REFRACTORY METAL COMPOUNDS
SCATTERING
SULFIDES
SULFUR COMPOUNDS
SUPERCONDUCTIVITY
TIN COMPOUNDS
TIN SULFIDES
TRANSITION ELEMENT COMPOUNDS
X-RAY DIFFRACTION