Y-123 - THE INFLUENCE OF VARIOUS DOPANT IONS ON STRUCTURE AND PROPERTIES

Authors
ERIKSSON SG STROM C BERASTEGUI P OSADA M KAKIHANA M KALL M BORJESSON L
Citation
Sg. Eriksson et al., Y-123 - THE INFLUENCE OF VARIOUS DOPANT IONS ON STRUCTURE AND PROPERTIES, Physica. C, Superconductivity, 235, 1994, pp. 389-390
Citations number
8
Categorie Soggetti
Physics, Applied
Journal title
Physica. C, Superconductivity → ACNP
ISSN journal
09214534
Volume
235
Year of publication
1994
Part
1
Pages
389 - 390
Database
ISI
SICI code
0921-4534(1994)235:<389:Y-TIOV>2.0.ZU;2-V
Abstract
A decreased oxygen content in Y-123 has the same effect as Me(3+) (Me = Al, Co, Fe) doping at the Cu1 chain site. This results in a depressi on of T-c and based on the observed structural changes it can be ratio nalised in terms of a decreased carrier concentration in the CuO2 plan es. In ''underdoped'' materials the superconducting properties can be improved by partial replacement of yttrium by calcium, a finding made in oxygen depleted as well as cobalt doped materials.