TRAPPED MAGNETIC-FLUX IN POLYCRYSTALLINE YBA2CU3O7

Authors
KEITH V SMITH HJT
Citation
V. Keith et Hjt. Smith, TRAPPED MAGNETIC-FLUX IN POLYCRYSTALLINE YBA2CU3O7, Physica. C, Superconductivity, 218(1-2), 1993, pp. 8-14
Citations number
18
Categorie Soggetti
Physics, Applied
Journal title
Physica. C, Superconductivity → ACNP
ISSN journal
09214534
Volume
218
Issue
1-2
Year of publication
1993
Pages
8 - 14
Database
ISI
SICI code
0921-4534(1993)218:1-2<8:TMIPY>2.0.ZU;2-5
Abstract
Measurements of the trapped flux (remanent magnetism) in polycrystalli ne YBa2Cu3O7 in the range 15-50 K show that at low applied field pulse s, flux is trapped in the intergrain voids. A detailed measurement of a map of the remanent field over the whole surface of the sample shows that at very low fields flux is trapped in an asymmetrical and disord ered way whereas when the maximum flux is trapped in the intergrain vo ids the trapped-flux distribution is symmetrical.