Dependence of T-c on hydrostatic pressure in a 123 superconductor

Authors
Sadewasser, S Schilling, JS Knizhnik, A Reisner, GM Eckstein, Y
Citation
S. Sadewasser et al., Dependence of T-c on hydrostatic pressure in a 123 superconductor, EUR PHY J B, 15(1), 2000, pp. 15-20
Citations number
20
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
EUROPEAN PHYSICAL JOURNAL B
ISSN journal
14346028 → ACNP
Volume
15
Issue
1
Year of publication
2000
Pages
15 - 20
Database
ISI
SICI code
1434-6028(200005)15:1<15:DOTOHP>2.0.ZU;2-S
Abstract
Hydrostatic pressure studies on the tetragonal 123 superconductor (La1-xCax ) (Ba1.75-xLa0.25+x)Cu3Oy for x = 0.1 and variable oxygen content y show th at T-c increases rapidly under pressure (+5 K/GPa) for underdoped, optimall y doped and overdoped samples. This points to a common cause for the pressu re-induced changes in the superconductivity at all levels of doping, with n egligible effects from charge transfer. Weak relaxation behavior in T-c is observed only for the most underdoped sample.