Josephson effects in ultrashort mean-free-path superconductors
Journal Article
·
· Appl. Phys. Lett.; (United States)
We show that it is possible to observe Josephson effects at temperatures up to 17 K in a superconductor with intrinsic mean free path <20 A, contrary to what is generally thought possible. The temperature dependence of the critical current in Nb/sub 3/Sn microbridges near T/sub c/ is consistent with predictions of the one-dimensional Ginzburg-Landau (ODGL) theory, while microwave-induced steps in the current-voltage characteristics are in excellent agreement with the resistively shunted junction (RSJ) model.
- Research Organization:
- Solid State Science Division, Argonne National Laboratory, Argonne, Illinois 60439
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 6584871
- Journal Information:
- Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 38:7; ISSN APPLA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
656102 -- Solid State Physics-- Superconductivity-- Acoustic
Electronic
Magnetic
Optical
& Thermal Phenomena-- (-1987)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALLOYS
COMPARATIVE EVALUATIONS
CRITICAL CURRENT
CURRENTS
DATA
ELECTRIC BRIDGES
ELECTRIC CURRENTS
ELECTRICAL EQUIPMENT
EQUIPMENT
GINZBURG-PITAEVSKII THEORY
INFORMATION
JOSEPHSON EFFECT
MATHEMATICAL MODELS
MEAN FREE PATH
NIOBIUM ALLOYS
NIOBIUM BASE ALLOYS
NUMERICAL DATA
ONE-DIMENSIONAL CALCULATIONS
PHYSICAL PROPERTIES
SUPERCONDUCTORS
TEMPERATURE DEPENDENCE
THEORETICAL DATA
THERMODYNAMIC PROPERTIES
TIN ALLOYS
TRANSITION TEMPERATURE
VERY LOW TEMPERATURE
360104* -- Metals & Alloys-- Physical Properties
656102 -- Solid State Physics-- Superconductivity-- Acoustic
Electronic
Magnetic
Optical
& Thermal Phenomena-- (-1987)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALLOYS
COMPARATIVE EVALUATIONS
CRITICAL CURRENT
CURRENTS
DATA
ELECTRIC BRIDGES
ELECTRIC CURRENTS
ELECTRICAL EQUIPMENT
EQUIPMENT
GINZBURG-PITAEVSKII THEORY
INFORMATION
JOSEPHSON EFFECT
MATHEMATICAL MODELS
MEAN FREE PATH
NIOBIUM ALLOYS
NIOBIUM BASE ALLOYS
NUMERICAL DATA
ONE-DIMENSIONAL CALCULATIONS
PHYSICAL PROPERTIES
SUPERCONDUCTORS
TEMPERATURE DEPENDENCE
THEORETICAL DATA
THERMODYNAMIC PROPERTIES
TIN ALLOYS
TRANSITION TEMPERATURE
VERY LOW TEMPERATURE