Granular behaviour and microstructure of Tl-doped HgBa2CuO4+y: impact of grinding

Authors
Fabrega, L Fontcuberta, J Sandiumenge, F Yakhmi, JV Bandyopadhyay, B Ghosh, B
Citation
L. Fabrega et al., Granular behaviour and microstructure of Tl-doped HgBa2CuO4+y: impact of grinding, SUPERCOND S, 12(5), 1999, pp. 259-263
Citations number
18
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
SUPERCONDUCTOR SCIENCE & TECHNOLOGY
ISSN journal
09532048 → ACNP
Volume
12
Issue
5
Year of publication
1999
Pages
259 - 263
Database
ISI
SICI code
0953-2048(199905)12:5<259:GBAMOT>2.0.ZU;2-H
Abstract
The correlation between microstructure, superconducting properties and proc essing has been investigated with Hg1-xTlxBa2CuO4+y powders. These samples exhibit poor shielding and field-induced dissipation, as commonly found in other Hg-based cuprates. In addition, grains typically present a high densi ty of low-angle grain boundaries; these are likely to be related to the syn thesis technique and appear responsible for the field-induced granular beha viour.