SYNTHESIS AND CHARACTERIZATION OF BI-2(SR,CA)(3)CU2O8+DELTA WITH DIFFERENT SR CA RATIO/

Authors
SEKINE R KAWAI M MURAKOSHI Y TERATANI S
Citation
R. Sekine et al., SYNTHESIS AND CHARACTERIZATION OF BI-2(SR,CA)(3)CU2O8+DELTA WITH DIFFERENT SR CA RATIO/, Physica. C, Superconductivity, 246(3-4), 1995, pp. 385-390
Citations number
12
Categorie Soggetti
Physics, Applied
Journal title
Physica. C, Superconductivity → ACNP
ISSN journal
09214534
Volume
246
Issue
3-4
Year of publication
1995
Pages
385 - 390
Database
ISI
SICI code
0921-4534(1995)246:3-4<385:SACOBW>2.0.ZU;2-1
Abstract
Single-phase Bi-2.2(Sr0.9-yCay)(2)Ca1.0Cu2.0O8.1+z (y = 0 to 0.4) was synthesized and changes in the environment around apical oxygen (O-ap) induced by substitution of the Sr sites by Ca were examined. By decre asing the z value, the T-c value increases from 71.5 K to 91.5 K for t he sample with y = 0, but remains unchanged for the sample with y = 0. 4. The different behavior of changes in T-c by the y values are discus sed from the point of view of the changes in the Cu-O-ap bond length.