Superconductivity of the single-phase compound Er/sub 1/Ba/sub 2/Cu/sub 3/O/sub 9-//sub delta/: Transport and structural properties

Journal Article · Mon Jun 01 04:00:00 EDT 1987 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.35.8705· OSTI ID:5905468

Golben, J P; Lee, S; Lee, S Y; Song, Y; Noh, T W; Chen, X; Gaines, J R; Tettenhorst, R T

We report electrical and structural measurements on the high-T/sub c/ single-phase superconductor Er/sub 1/Ba/sub 2/Cu/sub 3/O/sub 9-//sub delta/. Our best samples have relatively low room-temperature resistance and superconducting onset temperature of 94 K. The structure of the single phase is found to be an orthorhombic perovskite similar to the one reported for the Y/sub 1/Ba/sub 2/Cu/sub 3/O/sub 9-//sub delta/ compound, but different from the K/sub 2/NiF/sub 4/ perovskite structure found in the earlier high-T/sub c/ compounds. The calculated effect of possible oxygen deficiencies in several of the crystal planes will be discussed. The x-ray diffraction spectrum shows that there could be more than one phase present, depending on the preparation conditions.

• Research Organization: Department of Physics, Ohio State University, Columbus, Ohio 43210
• OSTI ID: 5905468
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 35:16; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360202 -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
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
CRYSTAL STRUCTURE
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ERBIUM COMPOUNDS
ERBIUM OXIDES
OXIDES
OXYGEN COMPOUNDS
PEROVSKITES
PHYSICAL PROPERTIES
RARE EARTH COMPOUNDS
SUPERCONDUCTIVITY
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE