A1 Refereed original research article in a scientific journal
Effect of target density on YBCO thin films deposited from nanograined targets
Authors: Paturi P, Schlesier K, Huhtinen H
Publisher: ELSEVIER SCIENCE BV
Publication year: 2009
Journal:: Physica C: Superconductivity and its Applications
Journal name in source: PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS
Journal acronym: PHYSICA C
Volume: 469
Issue: 14
First page : 839
Last page: 842
Number of pages: 4
ISSN: 0921-4534
DOI: https://doi.org/10.1016/j.physc.2009.05.011
Abstract
Nanograined YBa(2)Cu(3)O(6-x) (YBCO) targets with grain sizes of 25-45 nm and different densities were prepared with sol-gel method. The properties of the thin films laser deposited from these targets were systematically studied. It was found that most parameters are not clearly affected by the target density, although the surface roughness decreased with target density. A small effect of decreasing J(c) with increasing target density was observed, but this can be interpreted as film to film variation. On the other hand, a negative correlation between the accommodation held, B*, and zero field J(c) was observed and B* was found to increase with increasing number of lattice defects. Thus target density is found not to have a large effects on the superconducting or structural properties of YBCO thin films. (C) 2009 Elsevier B.V. All rights reserved.
Nanograined YBa(2)Cu(3)O(6-x) (YBCO) targets with grain sizes of 25-45 nm and different densities were prepared with sol-gel method. The properties of the thin films laser deposited from these targets were systematically studied. It was found that most parameters are not clearly affected by the target density, although the surface roughness decreased with target density. A small effect of decreasing J(c) with increasing target density was observed, but this can be interpreted as film to film variation. On the other hand, a negative correlation between the accommodation held, B*, and zero field J(c) was observed and B* was found to increase with increasing number of lattice defects. Thus target density is found not to have a large effects on the superconducting or structural properties of YBCO thin films. (C) 2009 Elsevier B.V. All rights reserved.
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