Size effects in superconducting niobium contacts
Journal Article
·
· Sov. Phys. - Solid State (Engl. Transl.); (United States)
OSTI ID:6598379
An investigation was made of the size effects in superconducting niobium contacts characterized by very good high-frequency properties and used as microwave and laser radiation mixers. The resistance ratio of the niobium electrodes was R/sub 300tsK//R/sub 10tsK/approx.100--200 and the mean free path of electrons was l(10 K)roughly-equal2500--5000 A. A self-induced resonant structure was observed in the current-voltage characteristics of contacts with different electrode areas and this structure was described well by a microstrip circular resonator model. Oscillations of the derivatives of the I-V characteristics were observed and these were attributed to the Tomasch effect appearing in single-crystal grains at the tip of a point-contact.
- Research Organization:
- P. N. Lebedev Physics Institute, Academy of Sciences of the USSR, Moscow
- OSTI ID:
- 6598379
- Journal Information:
- Sov. Phys. - Solid State (Engl. Transl.); (United States), Journal Name: Sov. Phys. - Solid State (Engl. Transl.); (United States) Vol. 26:2; ISSN SPSSA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
420201 -- Engineering-- Cryogenic Equipment & Devices
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ANNEALING
CRYSTALS
DATA
DEGASSING
ELECTRIC CONDUCTIVITY
ELECTRIC CONTACTS
ELECTRICAL EQUIPMENT
ELECTRICAL PROPERTIES
ELECTRONS
ELEMENTARY PARTICLES
ELEMENTS
EQUIPMENT
EXPERIMENTAL DATA
FERMIONS
HEAT TREATMENTS
INFORMATION
JOSEPHSON EFFECT
JUNCTIONS
LEPTONS
MEAN FREE PATH
MEDIUM TEMPERATURE
METALS
MONOCRYSTALS
NIOBIUM
NUMERICAL DATA
OSCILLATIONS
PHYSICAL PROPERTIES
SUPERCONDUCTING JUNCTIONS
SUPERCONDUCTIVITY
TRANSITION ELEMENTS
ULTRALOW TEMPERATURE
360104* -- Metals & Alloys-- Physical Properties
420201 -- Engineering-- Cryogenic Equipment & Devices
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ANNEALING
CRYSTALS
DATA
DEGASSING
ELECTRIC CONDUCTIVITY
ELECTRIC CONTACTS
ELECTRICAL EQUIPMENT
ELECTRICAL PROPERTIES
ELECTRONS
ELEMENTARY PARTICLES
ELEMENTS
EQUIPMENT
EXPERIMENTAL DATA
FERMIONS
HEAT TREATMENTS
INFORMATION
JOSEPHSON EFFECT
JUNCTIONS
LEPTONS
MEAN FREE PATH
MEDIUM TEMPERATURE
METALS
MONOCRYSTALS
NIOBIUM
NUMERICAL DATA
OSCILLATIONS
PHYSICAL PROPERTIES
SUPERCONDUCTING JUNCTIONS
SUPERCONDUCTIVITY
TRANSITION ELEMENTS
ULTRALOW TEMPERATURE