STRUCTURAL STABILITY OF LUBA2CU3O7-DELTA AND SUPERCONDUCTIVITY IN THIN-FILMS OF LU(1-X)M(X)BA(2)CU(3)O(7-DELTA) (M=PR, TB, AND CE)

Authors
GNANASEKAR KI PINTO R TAMHANE AS GUPTA LC PAI SP APTE PR SHARON M VIJAYARAGHAVAN R
Citation
Ki. Gnanasekar et al., STRUCTURAL STABILITY OF LUBA2CU3O7-DELTA AND SUPERCONDUCTIVITY IN THIN-FILMS OF LU(1-X)M(X)BA(2)CU(3)O(7-DELTA) (M=PR, TB, AND CE), Physical review. B, Condensed matter, 52(2), 1995, pp. 1362-1367
Citations number
31
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
52
Issue
2
Year of publication
1995
Pages
1362 - 1367
Database
ISI
SICI code
0163-1829(1995)52:2<1362:SSOLAS>2.0.ZU;2-E
Abstract
We present here the results of our investigations of the structural an d superconducting properties of thin films of Lu(1-x)M(x)Ba(2)Cu(3)O(7 -delta) (M=Ce, Pr, and Tb), the three ambivalent rare-earth ions. Our results show that Pr and Tb ions are in the trivalent state and Ce ion s are tetravalent. Structural (in)stability of the parent material LuB a2Cu3O7-delta forms the basis of our arguments. We suggest a simple mo del to account for the influence of Pr ions on superconductivity in cu prates.