Structure of the high-T/sub c/ superconductor Ba/sub 2/YCu/sub 3/O/sub x/ at 750 /sup 0/C using neutron diffraction
Journal Article
·
· Phys. Rev. B: Condens. Matter; (United States)
The crystal structure of the high-T/sub c/ superconductor Ba/sub 2/YCu/sub 3/O/sub x/ at 750 /sup 0/C was elucidated using Rietveld analysis of neutron powder diffraction data. We find that the phase is tetragonal at this temperature, with space group P4/mmm, and lattice constants a = 3.8823 A and c = 11.826 A. This is an oxygen deficient triperovskite, in which Ba and Y ions are ordered along the c axes in Ba-Y-Ba-Ba sequence. The occupation factors of the oxygen sites 4i, 2g, 2f are 0.97, 1.00, 0.33, respectively. The total number of the oxygen atoms per unit cell is 6.54.
- Research Organization:
- Institute of Physics, Academia Sinica, Box 603, Beijing, People's Republic of China
- OSTI ID:
- 5451887
- Journal Information:
- Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 37:10; ISSN PRBMD
- Country of Publication:
- United States
- Language:
- English
Similar Records
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Structure of the high-T/sub c/ superconductor Ba/sub 2/YCu/sub 3/O/sub 7+//sub x/ above (124 K) and below (71 K) T/sub c/ by neutron diffraction
Low temperature thermal processing of Ba sub 2 YCu sub 3 O sub 7-x superconducting ceramics
Journal Article
·
Fri May 01 00:00:00 EDT 1987
· Phys. Rev. B: Condens. Matter; (United States)
·
OSTI ID:6878212
Structure of the high-T/sub c/ superconductor Ba/sub 2/YCu/sub 3/O/sub 7+//sub x/ above (124 K) and below (71 K) T/sub c/ by neutron diffraction
Journal Article
·
Mon Nov 30 23:00:00 EST 1987
· Phys. Rev. B: Condens. Matter; (United States)
·
OSTI ID:5741989
Low temperature thermal processing of Ba sub 2 YCu sub 3 O sub 7-x superconducting ceramics
Conference
·
Wed Jul 01 00:00:00 EDT 1987
· Advanced Ceramic Materials; (USA)
·
OSTI ID:5058264
Related Subjects
36 MATERIALS SCIENCE
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COHERENT SCATTERING
COPPER COMPOUNDS
COPPER OXIDES
CRYSTAL LATTICES
CRYSTAL STRUCTURE
DIFFRACTION
NEUTRON DIFFRACTION
OXIDES
OXYGEN COMPOUNDS
SCATTERING
SUPERCONDUCTORS
TETRAGONAL LATTICES
TRANSITION ELEMENT COMPOUNDS
VERY HIGH TEMPERATURE
YTTRIUM COMPOUNDS
YTTRIUM OXIDES
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COHERENT SCATTERING
COPPER COMPOUNDS
COPPER OXIDES
CRYSTAL LATTICES
CRYSTAL STRUCTURE
DIFFRACTION
NEUTRON DIFFRACTION
OXIDES
OXYGEN COMPOUNDS
SCATTERING
SUPERCONDUCTORS
TETRAGONAL LATTICES
TRANSITION ELEMENT COMPOUNDS
VERY HIGH TEMPERATURE
YTTRIUM COMPOUNDS
YTTRIUM OXIDES