VARIATION OF THE LATTICE-PARAMETERS WITH THE CU-PB-BI RATIO IN LAYERED CUPRATES WITH THE GENERAL FORMULA -EQUAL-TO-0.3,Z-SIMILAR-TO-7)(Y)[PBXBIY])SR2YCU2OZ (0.5)

Authors
BAUERNFEIND L WIDDER W HOFMANN W BRAUN HF
Citation
L. Bauernfeind et al., VARIATION OF THE LATTICE-PARAMETERS WITH THE CU-PB-BI RATIO IN LAYERED CUPRATES WITH THE GENERAL FORMULA -EQUAL-TO-0.3,Z-SIMILAR-TO-7)(Y)[PBXBIY])SR2YCU2OZ (0.5), Physica. C, Superconductivity, 235, 1994, pp. 947-948
Citations number
6
Categorie Soggetti
Physics, Applied
Journal title
Physica. C, Superconductivity → ACNP
ISSN journal
09214534
Volume
235
Year of publication
1994
Part
2
Pages
947 - 948
Database
ISI
SICI code
0921-4534(1994)235:<947:VOTLWT>2.0.ZU;2-U
Abstract
We present a systematic study of the variation of lattice parameters f or the nonsuperconducting cuprates with the compositions (Cu-1-(x+y)[P bxBiy])Sr2YCu2O2 (1212 structure). Nearly single phase samples are obt ained for average valencies near three for cations on the metal site i n the rocksalt layer, assuming Cu2+,Pb4+ and Bi5+. Although the valenc y of in-plane copper can formally be varied, the metal-insulator trans ition appears to be suppressed by carrier trapping due to oxygen disor der.