Single-electron tunneling into randomly distributed double-electron states: Linear voltage and temperature dependences of the conductance of high- T sub c tunnel junctions
Journal Article
·
· Physical Review, B: Condensed Matter; (United States)
- Institute of Theoretical Physics, Chalmers University of Technology, S-412 96 Goeteborg (Sweden)
In sandwich-type tunnel junctions of high-{ital T}{sub {ital c}} materials the conductance is observed to have a large zero-bias value, linear voltage dependence at low temperature, and linear temperature dependence at low voltage. We suggest a model of single-electron tunneling into randomly distributed (disordered) local centers with strong interelectron attraction to explain these features. In point-contact tunnel junctions these features should be absent due to local homogeneity in contacts of small area. We compare predictions of the model with experiment.
- OSTI ID:
- 6996675
- Journal Information:
- Physical Review, B: Condensed Matter; (United States), Vol. 46:13; ISSN 0163-1829
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
HIGH-TC SUPERCONDUCTORS
ELECTRIC CONDUCTIVITY
ELECTRIC POTENTIAL
ELECTRON-ELECTRON INTERACTIONS
JOSEPHSON JUNCTIONS
TEMPERATURE DEPENDENCE
ELECTRICAL PROPERTIES
INTERACTIONS
JUNCTIONS
LEPTON-LEPTON INTERACTIONS
PARTICLE INTERACTIONS
PHYSICAL PROPERTIES
SUPERCONDUCTING JUNCTIONS
SUPERCONDUCTORS
665411* - Basic Superconductivity Studies- (1992-)
SUPERCONDUCTIVITY AND SUPERFLUIDITY
HIGH-TC SUPERCONDUCTORS
ELECTRIC CONDUCTIVITY
ELECTRIC POTENTIAL
ELECTRON-ELECTRON INTERACTIONS
JOSEPHSON JUNCTIONS
TEMPERATURE DEPENDENCE
ELECTRICAL PROPERTIES
INTERACTIONS
JUNCTIONS
LEPTON-LEPTON INTERACTIONS
PARTICLE INTERACTIONS
PHYSICAL PROPERTIES
SUPERCONDUCTING JUNCTIONS
SUPERCONDUCTORS
665411* - Basic Superconductivity Studies- (1992-)