153 K
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TitleExcess Oxygen Defects in Layered Cuprates
Author(s)Lightfoot, P.; Pei, S. Y.; Jorgensen, J. D.; Manthiram, A.; Tang, X. X.; Goodenough, J. B.
Publication DateSeptember 1990
Report NumberCONF-900813-1
Unique IdentifierACC0329
Other NumbersLegacy ID: DE90017669; OSTI ID: 6614880
Research OrgArgonne National Laboratory (ANL), IL (USA); University of Texas, Austin, TX (USA), Materials Science Laboratory
Contract NoW-31109-ENG-38
Sponsoring OrgU.S. Department of Energy (DOE) Office of Energy Research (ER); National Science Foundation (NSF) Office of Science and Technology Centers (STC) under contract STC-88-09854
Other InformationInternational Conference on the Chemistry of Electronic Ceramic Materials, Grand Teton National Park, WY (USA), 16-21 Aug 1990
Subject36 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
Related Web PagesJohn B. Goodenough, Cathode Materials, and Rechargeable Lithium-ion Batteries
AbstractNeutron 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.
153 K
8 pp.
 
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