Determination of the energy gap in superconducting vanadium films by the tunnel effect method
Journal Article
·
· Sov. Phys. - Solid State (Engl. Transl.); (United States)
OSTI ID:6511519
The vacuum evaporation method was used to prepare vanadium films with a superconducting transition temperature T/sub c/=5.0--5.25 /sup 0/K. Direct tunnel measurements of the energy gap 2..delta.. (T) demonstrated that the value of the ratio 2..delta.. (0)/k/sub B/T/sub c/ was equal to the theoretical value of 3.5 for vanadium. The results indicated that, in spite of the complex energy band structure, vanadium may be regarded as a superconductor with a weak interaction obeying the BCS theory of superconductivity.
- Research Organization:
- P. N. Lebedev Physics Institute, Academy of Sciences of the USSR, Moscow
- OSTI ID:
- 6511519
- Journal Information:
- Sov. Phys. - Solid State (Engl. Transl.); (United States), Journal Name: Sov. Phys. - Solid State (Engl. Transl.); (United States) Vol. 20:7; ISSN SPSSA
- 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
BCS THEORY
ELEMENTS
ENERGY GAP
FILMS
METALS
SUPERCONDUCTING FILMS
TRANSITION ELEMENTS
TUNNEL EFFECT
VANADIUM
360104* -- Metals & Alloys-- Physical Properties
656102 -- Solid State Physics-- Superconductivity-- Acoustic
Electronic
Magnetic
Optical
& Thermal Phenomena-- (-1987)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BCS THEORY
ELEMENTS
ENERGY GAP
FILMS
METALS
SUPERCONDUCTING FILMS
TRANSITION ELEMENTS
TUNNEL EFFECT
VANADIUM