Investigation of a new superconducting weak link

Journal Article · Sat Jul 01 04:00:00 EDT 1978 · Sov. Phys. - Solid State (Engl. Transl.); (United States)

OSTI ID:6475919

Golovashkin, A I; Lykov, A N; Makhashvili, L I; Pechen', E V

An investigation was made of the properties of a new weak link, representing a complex structure composed of two superconducting films separated by a fairly narrow normal region produced by scribing. Films of Nb and Ta were evaporated in vacuum on heated quartz substrates. The current-voltage characteristics of such a link could vary, depending on the depth of the scribing cut, from that typical of a tunnel contact to one exhibited by a superconducting bridge. The current-voltage characteristics of the investigated contacts revealed gap singularities, including harmonics and subharmonics of the gap. The temperature dependences of the positions of all the singularities were determined.

• Research Organization: P. N. Lebedev Physics Institute, Academy of Sciences of the USSR, Moscow
• OSTI ID: 6475919
• 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

Related Subjects

420201* -- Engineering-- Cryogenic Equipment & Devices
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ELECTRIC CONDUCTIVITY
ELECTRIC CONTACTS
ELECTRICAL EQUIPMENT
ELECTRICAL PROPERTIES
ELEMENTS
EQUIPMENT
FILMS
METALS
NIOBIUM
PHYSICAL PROPERTIES
REFRACTORY METALS
SUPERCONDUCTING FILMS
TANTALUM
TEMPERATURE DEPENDENCE
TRANSITION ELEMENTS