PHASE IDENTIFICATION AND SUPERCONDUCTIVITY TRANSITIONS IN SR-DOPED PR1.85CE0.15CUO4+DELTA

Authors
VARELA A VALLETREGI M GONZALEZCALBET JM
Citation
A. Varela et al., PHASE IDENTIFICATION AND SUPERCONDUCTIVITY TRANSITIONS IN SR-DOPED PR1.85CE0.15CUO4+DELTA, Journal of materials research, 12(10), 1997, pp. 2526-2532
Citations number
19
Categorie Soggetti
Material Science
Journal title
Journal of materials research → ACNP
ISSN journal
08842914
Volume
12
Issue
10
Year of publication
1997
Pages
2526 - 2532
Database
ISI
SICI code
0884-2914(1997)12:10<2526:PIASTI>2.0.ZU;2-O
Abstract
Sr-doped Pr1.85Ce0.15CuO4+delta samples have been prepared with accura te control of the oxygen content. The stability of both T' and T phas es is strongly dependent on Sr and oxygen content. An electron diffrac tion study indicates that, in some cases, anionic vacancies are ordere d leading to a pseudo-tetragonal superlattice with unit cell parameter s 2 root 2a(t) x c(t). Structural transitions and superconducting phas es created by hole doping in such a system are also reported.