FLUX TRAPPING AND MICROSTRUCTURE OF BULK TEXTURED YBA2CU3O6.9 CERAMICS PREPARED BY THE QUENCH AND MELT GROWTH TECHNIQUE

Authors
CZYZAK B ANDRZEJEWSKI B STANKOWSKI J PLESCH G ROSOVA A BUCHTA S DANIELIK L
Citation
B. Czyzak et al., FLUX TRAPPING AND MICROSTRUCTURE OF BULK TEXTURED YBA2CU3O6.9 CERAMICS PREPARED BY THE QUENCH AND MELT GROWTH TECHNIQUE, Physica status solidi. a, Applied research, 141(1), 1994, pp. 191-203
Citations number
32
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physica status solidi. a, Applied research → ACNP
ISSN journal
00318965
Volume
141
Issue
1
Year of publication
1994
Pages
191 - 203
Database
ISI
SICI code
0031-8965(1994)141:1<191:FTAMOB>2.0.ZU;2-C
Abstract
Microwave absorption is measured in highly textured, dense ceramic sam ples of YBa2Cu3O6.9 obtained by the quench and melt growth technique. The measurements on samples cooled down to the superconducting state i n an external magnetic field allow to carry out an analysis of the mag netic flux trapping. Its character is found to be isotropic despite di stinct structural anisotropy of the studied materials confirmed by the results of X-ray analysis and optical microscopy in polarized light. An attempt to interpret the results within the model of intergrain Jos ephson junctions is made.