Comparison of carbonate, citrate, and oxalate chemical routes to the high-T/sub c/ metal oxide superconductors La/sub 2-x/Sr/sub x/CuO/sub 4/

Journal Article · Wed May 20 00:00:00 EDT 1987 · Inorg. Chem.; (United States)

DOI:https://doi.org/10.1021/ic00257a004· OSTI ID:6543126

Wang, H H; Carlson, K D; Geiser, U; Thorn, R J; Kao, H C.I.; Beno, M A; Monaghan, M R; Allen, T J; Proksch, R B; Stupka, D L; Williams, J M

In this communication the authors compare the carbonate, citrate, and oxalate solution techniques for the synthesis of the high-T/sub c/ compounds La/sub 2-x/Sr/sub x/CuO/sub 4/. The superconducting properties of the compounds are determined as much by the oxygen stoichiometry as by the metal stoichiometry, and therefore, the sintering and annealing temperatures and O/sub 2/ partial pressures all influence the conductive properties of the materials.

• Research Organization: Argonne National Lab., IL
• DOE Contract Number: W-31-109-ENG-38
• OSTI ID: 6543126
• Journal Information: Inorg. Chem.; (United States), Vol. 26:10
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
36 MATERIALS SCIENCE
COPPER OXIDES
CHEMICAL COMPOSITION
CHEMICAL PREPARATION
SUPERCONDUCTIVITY
LANTHANUM ALLOYS
STRONTIUM ALLOYS
CARBONATES
CITRATES
EXPERIMENTAL DATA
OXALATES
SOLUTIONS
STOICHIOMETRY
TEMPERATURE DEPENDENCE
ALLOYS
CARBON COMPOUNDS
CARBOXYLIC ACID SALTS
CHALCOGENIDES
COPPER COMPOUNDS
DATA
DISPERSIONS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
INFORMATION
MIXTURES
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RARE EARTH ALLOYS
SYNTHESIS
TRANSITION ELEMENT COMPOUNDS
400201* - Chemical & Physicochemical Properties
360201 - Ceramics
Cermets
& Refractories- Preparation & Fabrication
360204 - Ceramics
Cermets
& Refractories- Physical Properties