POSSIBLE FREQUENCY-DEPENDENCE OF THE SURFACE-BARRIER IN HIGH-T-C SUPERCONDUCTING GRAINS

Authors
POLICHETTI M GOMORY G PACE S
Citation
M. Polichetti et al., POSSIBLE FREQUENCY-DEPENDENCE OF THE SURFACE-BARRIER IN HIGH-T-C SUPERCONDUCTING GRAINS, Physics letters. A, 249(1-2), 1998, pp. 140-146
Citations number
23
Categorie Soggetti
Physics
Journal title
Physics letters. A → ACNP
ISSN journal
03759601
Volume
249
Issue
1-2
Year of publication
1998
Pages
140 - 146
Database
ISI
SICI code
0375-9601(1998)249:1-2<140:PFOTSI>2.0.ZU;2-W
Abstract
Polycrystalline YBa2Cu3O7-delta has been analyzed in dynamic condition s by AC susceptibility measurements in a wide range of frequencies (10 (0)-10(5) Hz), By supposing the presence of intergrain shielding curre nts and a surface barrier on the grains, a decrease of the height of t he barrier with increasing frequency appears. (C) 1998 Elsevier Scienc e B.V.