Structure of superconducting Sr[sub 0. 9]La[sub 0. 1]CuO[sub 2] ([ital T][sub [ital c]]=42 K) from neutron powder diffraction

Journal Article · Tue Jun 01 04:00:00 EDT 1993 · Physical Review, B: Condensed Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.47.14654· OSTI ID:6786950

Jorgensen, J D; Radaelli, P G; Hinks, D G; Wagner, J L ^[1]; Kikkawa, S; Er, G; Kanamaru, F ^[2]

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1. Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)
2. The Institute of Scientific and Industrial Research, Osaka University, 8-1 Mihogaoka, Ibaraki, Osaka, 567 (Japan)

We have refined the crystal structure of the electron-doped infinite-layer superconducting compound Sr[sub 0.9]La[sub 0.1]CuO[sub 2] ([ital T][sub [ital c]]=42 K) from neutron-powder-diffraction data for an 82-mg sample synthesized at high pressure. The metal- and oxygen-atom lattices are perfectly stoichiometric and there is no excess (interstitial) oxygen in the Sr(La) layer. Thus, neither oxygen vacancies nor interstitial oxygen play a role in the doping of this compound.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 6786950
• Journal Information: Physical Review, B: Condensed Matter; (United States), Journal Name: Physical Review, B: Condensed Matter; (United States) Vol. 47:21; ISSN PRBMDO; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
ALKALINE EARTH METAL COMPOUNDS
CHALCOGENIDES
COHERENT SCATTERING
COPPER COMPOUNDS
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
CUPRATES
DIFFRACTION
HIGH-TC SUPERCONDUCTORS
INTERSTITIALS
LANTHANUM COMPOUNDS
LANTHANUM OXIDES
NEUTRON DIFFRACTION
OXIDES
OXYGEN COMPOUNDS
POINT DEFECTS
RARE EARTH COMPOUNDS
SCATTERING
STOICHIOMETRY
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
VACANCIES