MODEL FOR LOW-FIELD MICROWAVE-ABSORPTION IN GRANULAR TYPE-II SUPERCONDUCTORS

Citation
A. Pertile et al., MODEL FOR LOW-FIELD MICROWAVE-ABSORPTION IN GRANULAR TYPE-II SUPERCONDUCTORS, Physical review. B, Condensed matter, 52(21), 1995, pp. 15475-15478
Citations number
9
Categorie Soggetti
Physics, Condensed Matter
ISSN journal
01631829
Volume
52
Issue
21
Year of publication
1995
Pages
15475 - 15478
Database
ISI
SICI code
0163-1829(1995)52:21<15475:MFLMIG>2.0.ZU;2-V
Abstract
A model of microwave absorption in superconductors is proposed in whic h the applied microwave field interacts with the fluxons in the surfac e layers of the superconducting grains. The flux in these surface laye rs is mainly reentrant and antiparallel to the flux trapped inside. Me asurements are reported of low-field microwave absorption in the YBa2C u3O7-delta superconductor carried out under field-cooling and zero-fie ld-cooling conditions in the temperature range from 5 to 80 K, and the y are well explained by this model.