Tunneling characteristics of internal Josephson junctions in YBa/sub 2/Cu/sub 3/O/sub 7-//sub delta/ thin films

Journal Article · Wed Nov 30 23:00:00 EST 1988 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.38.11805· OSTI ID:6889695

Brocklesby, W S; Monroe, D; Hong, M; Liou, S H; Kwo, J; Fisanick, G J; Mankiewich, P M; Howard, R E

We have measured detailed I-V characteristics of small areas of YBa/sub 2/Cu/sub 3/O/sub 7-//sub delta/ films, which exhibit structure associated with individual Josephson junctions within the film. Both hysteretic and nonhysteretic junctions are seen. A simple model relating the voltage steps to the junction properties is developed. The temperature dependence of I/sub c/ for the hysteretic junctions fits that predicted for quasiparticle tunneling junctions between conventional superconductors.

• Research Organization: ATandT Bell Laboratories, Murray Hill, New Jersey 07974
• OSTI ID: 6889695
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 38:16; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CRITICAL CURRENT
CRYSTAL STRUCTURE
CURRENTS
DATA
ELECTRIC CONDUCTIVITY
ELECTRIC CURRENTS
ELECTRICAL PROPERTIES
EXPERIMENTAL DATA
FILMS
GRANULAR MATERIALS
HYSTERESIS
INFORMATION
JOSEPHSON JUNCTIONS
JUNCTIONS
LOW TEMPERATURE
MATERIALS
MICROSTRUCTURE
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SUPERCONDUCTING JUNCTIONS
SUPERCONDUCTIVITY
SUPERCONDUCTORS
THIN FILMS
TRANSITION ELEMENT COMPOUNDS
TUNNEL EFFECT
TYPE-II SUPERCONDUCTORS
VERY LOW TEMPERATURE
YTTRIUM COMPOUNDS
YTTRIUM OXIDES