Oxygen desorption from high and low T/sub c/ superconductors

Conference · Mon Feb 29 23:00:00 EST 1988

OSTI ID:7202980

Locquet, J P; Strauven, H; Wuyts, B; Verberke, O B; Zhang, K; Schuller, I K; Vanacken, J; Van Haesendonck, C; Bruynseraede, Y

High temperature oxygen evolution data are used to calculate the thermodynamic parameters related to the oxygen bonding and oxygen-oxygen repulsion energy in various superconducting compounds. The observed oxygen desorption from the linear Cu-O chains in the high T/sub c/ superconductors (YBa/sub 2/Cu/sub 3/O/sub 7/, LaBa/sub 2/Cu/sub 3/O/sub 7/, Pr/sub x/Y/sub 1-x/Ba/sub 2/Cu/sub 3/O/sub 7/) is not present in the low T/sub c/ superconductors (La/sub 2/CuO/sub 4/, La/sub 2-x/Sr/sub x/CuO/sub 4/). Above 800/sup 0/C all samples show sharp oxygen evolution peaks.

• Research Organization: Argonne National Lab., IL (USA); California Univ., San Diego, La Jolla (USA). Dept. of Physics; Louvain Univ. (Belgium). Dept. of Physics
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 7202980
• Report Number(s): CONF-880206-14; ON: DE88011980
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CRITICAL TEMPERATURE
DATA
DESORPTION
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELEMENTS
EXPERIMENTAL DATA
INFORMATION
LANTHANUM COMPOUNDS
LANTHANUM OXIDES
NONMETALS
NUMERICAL DATA
OXIDES
OXYGEN
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
PRASEODYMIUM COMPOUNDS
PRASEODYMIUM OXIDES
RARE EARTH COMPOUNDS
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
SUPERCONDUCTIVITY
TEMPERATURE DEPENDENCE
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
YTTRIUM COMPOUNDS
YTTRIUM OXIDES