Charge-density-wave and pairing susceptibilities in a two-dimensional electron-phonon model
Journal Article
·
· Physical Review Letters; (USA)
- Department of Physics, University of California, Santa Barbara, California 93106 (USA)
- Department of Physics, University of California, Davis, California 95616 (USA)
We present quantum Monte Carlo results for a two-dimensional electron-phonon model. At half filling, a Peierls--charge-density-wave (CDW) instability dominates the behavior of the system and suppresses superconductivity. The CDW structure factor scales with system size and is consistent with a finite-size Ising-like scaling analysis which we use to estimate {ital T}{sub {ital c}} for the Peierls-CDW transition. Away from half filling, the Monte Carlo calculations show superconducting pairing in an {ital s}-wave channel, with a peak in the pair field susceptibility near a region in which there are strong Peierls-CDW correlations.
- DOE Contract Number:
- FG03-85ER45197
- OSTI ID:
- 5844836
- Journal Information:
- Physical Review Letters; (USA), Journal Name: Physical Review Letters; (USA) Vol. 66:6; ISSN PRLTA; ISSN 0031-9007
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALI METAL COMPOUNDS
ALKALINE EARTH METAL COMPOUNDS
ALLOYS
BARIUM COMPOUNDS
BARIUM OXIDES
BISMUTH COMPOUNDS
BISMUTH OXIDES
CHALCOGENIDES
CRYSTAL MODELS
DATA
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
INFORMATION
INHIBITION
ISING MODEL
LEAD ADDITIONS
LEAD ALLOYS
LEAD COMPOUNDS
MATHEMATICAL MODELS
MECHANICS
MONTE CARLO METHOD
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PARTIAL WAVES
PHYSICAL PROPERTIES
PLASMA WAVES
POTASSIUM ADDITIONS
POTASSIUM ALLOYS
POTASSIUM COMPOUNDS
QUANTUM MECHANICS
S WAVES
SCALING LAWS
SIMULATION
STRUCTURE FACTORS
SUPERCONDUCTIVITY
THEORETICAL DATA
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE
TWO-DIMENSIONAL CALCULATIONS
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALI METAL COMPOUNDS
ALKALINE EARTH METAL COMPOUNDS
ALLOYS
BARIUM COMPOUNDS
BARIUM OXIDES
BISMUTH COMPOUNDS
BISMUTH OXIDES
CHALCOGENIDES
CRYSTAL MODELS
DATA
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
INFORMATION
INHIBITION
ISING MODEL
LEAD ADDITIONS
LEAD ALLOYS
LEAD COMPOUNDS
MATHEMATICAL MODELS
MECHANICS
MONTE CARLO METHOD
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PARTIAL WAVES
PHYSICAL PROPERTIES
PLASMA WAVES
POTASSIUM ADDITIONS
POTASSIUM ALLOYS
POTASSIUM COMPOUNDS
QUANTUM MECHANICS
S WAVES
SCALING LAWS
SIMULATION
STRUCTURE FACTORS
SUPERCONDUCTIVITY
THEORETICAL DATA
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE
TWO-DIMENSIONAL CALCULATIONS