GADOLINIUM SUBSTITUTION FOR YTTRIUM AND CHEMICAL PREPARATION EFFECTS IN YBA2CU3O7 - AN EPR STUDY

Authors
BEJJIT L DEVILLE A HADDAD M GAILLARD B NOEL H MONNEREAU O
Citation
L. Bejjit et al., GADOLINIUM SUBSTITUTION FOR YTTRIUM AND CHEMICAL PREPARATION EFFECTS IN YBA2CU3O7 - AN EPR STUDY, Annales de chimie, 23(1-2), 1998, pp. 217-220
Citations number
12
Categorie Soggetti
Chemistry,"Material Science
Journal title
Annales de chimie → ACNP
ISSN journal
01519107
Volume
23
Issue
1-2
Year of publication
1998
Pages
217 - 220
Database
ISI
SICI code
0151-9107(1998)23:1-2<217:GSFYAC>2.0.ZU;2-7
Abstract
Compounds with yttrium totally or partially substituted by gadolinium in High-T-c superconductor YBa2Cu3O7 were prepared. The superconductiv ity is not affected by this substitution. An orthorhombic structure ha s been observed in GdBa2Cu3O7 sintered and single crystals. The EPR me asurements show linewidth dependence on chemical preparation in GdBa2C u3O7. In Gd-low concentration compounds (x less than or equal to 0.02) a narrow parasite signal, due to the Y2BaCuO5 green phase, appears su perimposed to the principal Gd3+ ions EPR line.