Effect of the grooved SrTiO3 bicrystal line on the YBa2Cu3O7 grain boundary

Citation
Hw. Yu et al., Effect of the grooved SrTiO3 bicrystal line on the YBa2Cu3O7 grain boundary, PHYSICA C, 333(3-4), 2000, pp. 163-169
Citations number
23
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICA C
ISSN journal
0921-4534 → ACNP
Volume
333
Issue
3-4
Year of publication
2000
Pages
163 - 169
Database
ISI
SICI code
0921-4534(20000520)333:3-4<163:EOTGSB>2.0.ZU;2-V
Abstract
Using atomic force microscope (AFM), we have investigated the correlation b etween the characteristics of grooved SrTiO3 (STO) bicrystal line and the g rain-boundary (GB) microstructure of the YBa2Cu3Oy (YBCO) film. When the un derlying groove becomes deeper and steeper, the density of growth spirals a long the boundary line increases and the meandering configuration of GB gra dually disappears. From the measured signals of the dc-SQUIDs patterned on the films, we also conclude that the homogeneity of the GB is improved. (C) 2000 Elsevier Science B.V. All rights reserved.