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Get Free AccessA comparative neutron diffraction study of Bi2CaSr2Cu2O8+δ, Bi2Ca2SrCu2O8+δ and Bi2Ca1.5Y0.5SrCu2O8+δ has not only shown the presence of considerable oxygen excess in the Bi layers, but also evidence for oxygen pairing giving rise to O1− 2 or O2− 2 type species, probably the latter. The proportion of the paired species increases when Y partly replaces Ca. Furthermore, the T c decreases with an increase in paired species.
A. Sequeira, H. Rajagopal, R. Nagarajan, Cnr Rao (1989). Neutron diffraction evidence for oxygen dimers in Bi-Ca-Sr-Cu-O superconductors. Physica C Superconductivity, 159(1-2), pp. 87-92, DOI: 10.1016/0921-4534(89)90108-1.
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Type
Article
Year
1989
Authors
4
Datasets
0
Total Files
0
Language
English
Journal
Physica C Superconductivity
DOI
10.1016/0921-4534(89)90108-1
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