SUPERCONDUCTIVITY IN THE SYSTEM (Y,CA,SR)(BA,SR)2CU3-Z(SO4)ZOX

Authors
SLATER PR GREAVES C SLASKI M MUIRHEAD CM
Citation
Pr. Slater et al., SUPERCONDUCTIVITY IN THE SYSTEM (Y,CA,SR)(BA,SR)2CU3-Z(SO4)ZOX, Physica. C, Superconductivity, 213(1-2), 1993, pp. 14-16
Citations number
14
Categorie Soggetti
Physics, Applied
Journal title
Physica. C, Superconductivity → ACNP
ISSN journal
09214534
Volume
213
Issue
1-2
Year of publication
1993
Pages
14 - 16
Database
ISI
SICI code
0921-4534(1993)213:1-2<14:SITS(>2.0.ZU;2-Y
Abstract
The effects of partial substitution of Ba for Sr on the superconductin g transition in the sulphate containing materials Y0.74Ca0.16Sr0.1!Sr 2Cu2.78(SO4)0.22O6.12 and Y0.84Sr0.16!Sr2CU2,78(SO4)0.2206.12 have be en investigated. As the Ba content was increased, the superconducting transitions became sharper and T(c onset) increased to reach a maximum of 78 K. The cell symmetry was also observed to change from orthorhom bic to tetragonal, which is thought to be associated with randomizatio n of the orientations of the sulphate groups in the structure.