The vortex path model and angular dependence of J(c) in thin YBCO films deposited from undoped and BaZrO3-doped targets



: Paturi P

Publisher: IOP PUBLISHING LTD

: 2010

: Superconductor Science and Technology

: SUPERCONDUCTOR SCIENCE & TECHNOLOGY

: SUPERCOND SCI TECH

: 2

: 23

: 2

: 7

: 0953-2048

DOI: https://doi.org/10.1088/0953-2048/23/2/025030


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.



Last updated on 2024-26-11 at 21:47