Effect of anharmonicity on superconducting metal-hydrogen systems
Journal Article
·
· Phys. Rev., B: Solid State; (United States)
An estimate of the effect of anharmonicity on the superconducting transition temperature of stoichiometric palladium-hydride (-deutride) systems has been made. It is found that the static phonon frequency shift which modifies the electron-phonon coupling parameter is mainly due to quartic anharmonicity. The calculated transition temperature of PdD is in close agreement with experiments. This confirms that the inverse isotope effect in PdH (PdD) systems is due to anharmonicity of H (D) atoms in the Pd lattice.
- Research Organization:
- Department of Physics, Panjab University, Chandigarh-160014, India
- OSTI ID:
- 6577397
- Journal Information:
- Phys. Rev., B: Solid State; (United States), Journal Name: Phys. Rev., B: Solid State; (United States) Vol. 18:7; ISSN PLRBA
- Country of Publication:
- United States
- Language:
- English
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Mon Aug 29 00:00:00 EDT 1977
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Isotope effects and pressure dependence of the T/sub c/ of superconducting stoichiometric PdH and PdD synthesized and measured in a diamond anvil cell
Journal Article
·
Tue Feb 28 23:00:00 EST 1989
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·
OSTI ID:6228953
Related Subjects
36 MATERIALS SCIENCE
360102 -- Metals & Alloys-- Structure & Phase Studies
656100* -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALLOYS
ANHARMONIC CRYSTALS
CRYSTAL FIELD
CRYSTAL STRUCTURE
CRYSTALS
DEUTERIDES
DEUTERIUM COMPOUNDS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
HYDRIDES
HYDROGEN COMPOUNDS
PALLADIUM ALLOYS
PALLADIUM COMPOUNDS
PALLADIUM HYDRIDES
PHYSICAL PROPERTIES
PLATINUM METAL ALLOYS
STOICHIOMETRY
SUPERCONDUCTIVITY
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
360102 -- Metals & Alloys-- Structure & Phase Studies
656100* -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALLOYS
ANHARMONIC CRYSTALS
CRYSTAL FIELD
CRYSTAL STRUCTURE
CRYSTALS
DEUTERIDES
DEUTERIUM COMPOUNDS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
HYDRIDES
HYDROGEN COMPOUNDS
PALLADIUM ALLOYS
PALLADIUM COMPOUNDS
PALLADIUM HYDRIDES
PHYSICAL PROPERTIES
PLATINUM METAL ALLOYS
STOICHIOMETRY
SUPERCONDUCTIVITY
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE