Low-temperature conductivity of orbitally ordered Jahn-Teller components of transition metals under pressure
Journal Article
·
· Sov. Phys. J. (Engl. Transl.); (United States)
OSTI ID:5953447
A model is proposed for the metal-dielectric transition under pressure with the formation of a dielectric gap of the Mott-Hubbard type because of stabilization of an orbitally ordered state with the cooperative Jahn-Teller effect in a narrow doubly degenerate conductivity band, allowing for broadening of the latter under compression. A cluster approach is used choosing two neighboring lattice sites as the cluster. The results of the calculation are compared with experimental data on the electric conductivity of Jahn-Teller orbitally ordered crystals.
- Research Organization:
- Chernovtsy State Univ. (USSR)
- OSTI ID:
- 5953447
- Journal Information:
- Sov. Phys. J. (Engl. Transl.); (United States), Journal Name: Sov. Phys. J. (Engl. Transl.); (United States) Vol. 30:11; ISSN SOPJA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
360603 -- Materials-- Properties
656002 -- Condensed Matter Physics-- General Techniques in Condensed Matter-- (1987-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALI METAL COMPOUNDS
CESIUM CHLORIDES
CESIUM COMPOUNDS
CHALCOGENIDES
CHLORIDES
CHLORINE COMPOUNDS
CHROMIUM COMPOUNDS
CHROMIUM SULFIDES
CORRELATIONS
COULOMB FIELD
DIAGRAMS
ELECTRIC CONDUCTIVITY
ELECTRIC FIELDS
ELECTRICAL PROPERTIES
ELECTRON CORRELATION
ELECTRON-PHONON COUPLING
ENERGY GAP
FUNCTIONS
GOLD CHLORIDES
GOLD COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
HAMILTONIANS
JAHN-TELLER EFFECT
MANGANESE COMPOUNDS
MANGANESE OXIDES
MATHEMATICAL OPERATORS
MEAN-FIELD THEORY
ORDER PARAMETERS
ORDER-DISORDER TRANSFORMATIONS
OXIDES
OXYGEN COMPOUNDS
PHASE DIAGRAMS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
QUANTUM OPERATORS
SULFIDES
SULFUR COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
VANADIUM COMPOUNDS
VANADIUM OXIDES
WAVE FUNCTIONS
360104* -- Metals & Alloys-- Physical Properties
360603 -- Materials-- Properties
656002 -- Condensed Matter Physics-- General Techniques in Condensed Matter-- (1987-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALI METAL COMPOUNDS
CESIUM CHLORIDES
CESIUM COMPOUNDS
CHALCOGENIDES
CHLORIDES
CHLORINE COMPOUNDS
CHROMIUM COMPOUNDS
CHROMIUM SULFIDES
CORRELATIONS
COULOMB FIELD
DIAGRAMS
ELECTRIC CONDUCTIVITY
ELECTRIC FIELDS
ELECTRICAL PROPERTIES
ELECTRON CORRELATION
ELECTRON-PHONON COUPLING
ENERGY GAP
FUNCTIONS
GOLD CHLORIDES
GOLD COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
HAMILTONIANS
JAHN-TELLER EFFECT
MANGANESE COMPOUNDS
MANGANESE OXIDES
MATHEMATICAL OPERATORS
MEAN-FIELD THEORY
ORDER PARAMETERS
ORDER-DISORDER TRANSFORMATIONS
OXIDES
OXYGEN COMPOUNDS
PHASE DIAGRAMS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
QUANTUM OPERATORS
SULFIDES
SULFUR COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
VANADIUM COMPOUNDS
VANADIUM OXIDES
WAVE FUNCTIONS