PAT STUDY ON STRESS-FIELD PINNING IN HIGH-T-C SUPERCONDUCTORS

Authors
LI Y WANG YB TANG CG MA QZ CAO GH
Citation
Y. Li et al., PAT STUDY ON STRESS-FIELD PINNING IN HIGH-T-C SUPERCONDUCTORS, Science in China. Series A, Mathematics, Physics, Astronomy & Technological Sciences, 40(9), 1997, pp. 978-984
Citations number
15
Categorie Soggetti
Multidisciplinary Sciences
Journal title
Science in China. Series A, Mathematics, Physics, Astronomy & Technological Sciences → ACNP
ISSN journal
10016511
Volume
40
Issue
9
Year of publication
1997
Pages
978 - 984
Database
ISI
SICI code
1001-6511(1997)40:9<978:PSOSPI>2.0.ZU;2-S
Abstract
The simultaneous measurements of Doppler-broadened radiation spectra a nd lifetime spectra were performed by positron annihilation analysis o n Eu-doped Y-123 superconductors. When the doping concentration reache s 30 % and 70 %, the density of defeat and its stress-field reach the maximum for (Y1-xEux)Ba2Cu3O7-y. The pinning mechanism of such superco nductors is discussed, and the results support the stress pinning mech anism.