Crystal structure of LaHo0.75Sr0.25CuO3.89: evidence of oxygen vacancies in the fluorite-like slab

Authors
Kopnin, EM Belik, AA Schwer, H Bottger, G Karpinski, J
Citation
Em. Kopnin et al., Crystal structure of LaHo0.75Sr0.25CuO3.89: evidence of oxygen vacancies in the fluorite-like slab, J ALLOY COM, 319(1-2), 2001, pp. L1-L4
Citations number
18
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF ALLOYS AND COMPOUNDS
ISSN journal
09258388 → ACNP
Volume
319
Issue
1-2
Year of publication
2001
Pages
L1 - L4
Database
ISI
SICI code
0925-8388(20010426)319:1-2<L1:CSOLEO>2.0.ZU;2-O
Abstract
A crystal structure refinement of T*-phase LaHo0.75Sr0.25CuO3.89 was perfor med using neutron powder data (space group P4/nmm, Z=2, a=3.83890(5) Angstr om, c=12.5373(2) Angstrom, R-p=0.032, R-wp=0.041, R-1=0.037, R-F=0.037) foc using on the relationship between the oxygen vacancies and superconducting properties. Oxygen deficiency in the fluorite-like slab was established. Th is is in agreement with previously reported data about the absence of super conductivity in T*-phases having similar oxygen vacancy distributions. (C) 2001 Elsevier Science B.V. All rights reserved.