A1 Refereed original research article in a scientific journal
The vortex path model and angular dependence of J(c) in thin YBCO films deposited from undoped and BaZrO3-doped targets
Authors: Paturi P
Publisher: IOP PUBLISHING LTD
Publication year: 2010
Journal: Superconductor Science and Technology
Journal name in source: SUPERCONDUCTOR SCIENCE & TECHNOLOGY
Journal acronym: SUPERCOND SCI TECH
Number in series: 2
Volume: 23
Issue: 2
Number of pages: 7
ISSN: 0953-2048
DOI: https://doi.org/10.1088/0953-2048/23/2/025030(external)
Abstract
The vortex path model is applied to J(c)(theta) data of YBa2Cu3O6+x (YBCO) thin films with different densities and types of columnar defects. The films were prepared by laser deposition from micro- and nanograined undoped and BaZrO3-doped nanograined targets. It is found that in the ab-axis direction the model gives parameters which can be interpreted in terms of vortices trapped in the Cu-O spacer layers. In the c direction the model gives estimates of average vortex path shapes and explains the shoulders close to the ab peak frequently observed in the J(c)(theta) data without the need for assuming changes in the electronic mass anisotropy.
The vortex path model is applied to J(c)(theta) data of YBa2Cu3O6+x (YBCO) thin films with different densities and types of columnar defects. The films were prepared by laser deposition from micro- and nanograined undoped and BaZrO3-doped nanograined targets. It is found that in the ab-axis direction the model gives parameters which can be interpreted in terms of vortices trapped in the Cu-O spacer layers. In the c direction the model gives estimates of average vortex path shapes and explains the shoulders close to the ab peak frequently observed in the J(c)(theta) data without the need for assuming changes in the electronic mass anisotropy.
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