Excess oxygen defects in layered cuprates

Conference · Sat Sep 01 00:00:00 EDT 1990

OSTI ID:6614880

Lightfoot, P; Pei, S Y; Jorgensen, J D ^[1]; Manthiram, A; Tang, X X; Goodenough, J B ^[2]

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1. Argonne National Lab., IL (USA)
2. Texas Univ., Austin, TX (USA). Materials Science Lab.

Neutron powder diffraction has been used to study the oxygen defect chemistry of two non-superconducting layered cuprates, La{sub 1. 25}Dy{sub 0.75}Cu{sub 3.75}F{sub 0.5}, having a T{sup {asterisk}}- related structure, and La{sub 1.85}Sr{sub 1.15}Cu{sub 2}O{sub 6.25}, having a structure related to that of the newly discovered double-layer superconductor La{sub 2-x}Sr{sub x}CaCu{sub 2}O{sub 6}. The role played by oxygen defects in determining the superconducting properties of layered cuprates is discussed. 16 refs., 2 figs.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL (United States)
• Sponsoring Organization: DOE/ER
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 6614880
• Report Number(s): CONF-900813-1; ON: DE90017669; CNN: STC-88-09854; TRN: 90-029269
• Resource Relation: Conference: International conference on the chemistry of electronic ceramic materials, Grand Teton National Park, WY (USA), 16-21 Aug 1990
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
COPPER OXIDES
CRYSTAL DEFECTS
DYSPROSIUM OXIDES
LANTHANUM OXIDES
STRONTIUM OXIDES
CRYSTAL STRUCTURE
FLUORINE COMPOUNDS
HIGH-TC SUPERCONDUCTORS
NEUTRON DIFFRACTION
PARTIAL PRESSURE
ALKALINE EARTH METAL COMPOUNDS
CHALCOGENIDES
COHERENT SCATTERING
COPPER COMPOUNDS
DIFFRACTION
DYSPROSIUM COMPOUNDS
HALOGEN COMPOUNDS
LANTHANUM COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
RARE EARTH COMPOUNDS
SCATTERING
STRONTIUM COMPOUNDS
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
360202* - Ceramics
Cermets
& Refractories- Structure & Phase Studies