Actions for Structural study of Sr{sub 2}CuO{sub 3+delta} by neutron powder diffraction [electronic resource].

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Structural study of Sr{sub 2}CuO{sub 3+delta} by neutron powder diffraction [electronic resource].

Published
Arlington, Va. : National Science Foundation (U.S.), 1996.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
25 pages : digital, PDF file
Additional Creators
Argonne National Laboratory, National Science Foundation (U.S.), and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
Average crystal structures of superconducting Sr₂CuO{sub 3+δ} synthesized at ambient pressure from a hydroxometallate precursor were refined from neutron powder diffraction data. A simplified model was used to fit the modulated superstructures. Both compounds have an oxygen deficient La₂CuO₄-type tetragonal T structure with O vacancies located in the CuO₂ planes, not in the Sr₂O₂ layers. This raises important questions about the superconductivity in Sr₂CuO{sub 3+δ} reported to be a 70 K superconductor.
Report Numbers
E 1.99:anl/msd/pp--82713
anl/msd/pp--82713
Subject(s)
Other Subject(s)
Note
Published through SciTech Connect.
11/01/1996.
"anl/msd/pp--82713"
"DE97000560"
": Grant DMR 91-20000"
Mitchell, J.F.; Hunter, B.A.; Jorgensen, J.D.; Hinks, D.G.; Takano, M.; Shimakawa, Y.; Hitterman, R.L.; Hiroi, Z.; Shaked, S.
Funding Information
W-31109-ENG-38
View MARC record | catkey: 14448686