High temperature superconductivity in Y-Ba-Cu-Nb-O system

Journal Article · Mon Aug 01 04:00:00 EDT 1988 · Int. J. Mod. Phys. B; (United States)

DOI:https://doi.org/10.1142/S0217979288000299· OSTI ID:5828144

Suresha, N G; Higo, S; Hakuraku, Y; Otawa, T; Honjo, Y; Ogushi, T

Results of the resistivity and magnetic susceptibility measurements for an oxide superconductor with nominal compositions of Y/sub 1/Ba/sub 2/ (Cu/sub 1-x/Nb/sub 2/)/sub 3/O/sub 6+/delta// and Y/sub 0.4/Ba/sub 0.6/ (Cu/sub 1-x/Nb/sub x/)O/sub 2+/delta// where x = 0.1, 0.15, 0.2, are reported. Superconducting transition temperatures T/sub c/ onset (T/sub co/) and T/sub c/ final (T/sub cf/) are above 90 K and 80 K respectively. The authors have observed a gradual change in the X-ray powder diffraction patterns of the samples with the change in x.

• Research Organization: Kagoshima Univ. (Japan). Faculty of Engineering
• OSTI ID: 5828144
• Journal Information: Int. J. Mod. Phys. B; (United States), Journal Name: Int. J. Mod. Phys. B; (United States) Vol. 2:3; ISSN IJPBE
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
656002 -- Condensed Matter Physics-- General Techniques in Condensed Matter-- (1987-)
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
CHEMICAL COMPOSITION
COHERENT SCATTERING
COPPER COMPOUNDS
COPPER OXIDES
DIFFRACTION
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
HIGH TEMPERATURE
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
NIOBIUM COMPOUNDS
NIOBIUM OXIDES
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
POWDERS
REFRACTORY METAL COMPOUNDS
SAMPLING
SCATTERING
SUPERCONDUCTIVITY
SUPERCONDUCTORS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
X-RAY DIFFRACTION
YTTRIUM COMPOUNDS
YTTRIUM OXIDES