NDLI: Influence of CeO$_{2}$-Cap Layer on the Texture and Critical Current Density of YBCO Film

Content Provider	Springer Nature Link
Author	Xu, Da Liu, Linfei Wang, Ying Zhu, Shengping Zhu, Peng Li, Yijie
Copyright Year	2011
Abstract	YBa$_{2}$Cu$_{3}$O$_{7}$ (YBCO) thin films have been fabricated on different textured CeO$_{2}$-cap layers by pulsed laser deposition (PLD). The texture and critical current density J $_{ c }$ of YBCO thin films have been systematically investigated. Both in-plane and out-of-plane textures of YBCO films and CeO$_{2}$-cap films were characterized by X-ray diffraction (XRD). And the critical currents of YBCO films were measured by the conventional four-probe method. It was found that the texture and J $_{ c }$ of YBCO films were largely dependent on the texture of CeO$_{2}$-cap layers under the optimized deposition conditions. With increasing the degree of in-plane and out-of-plane texture of CeO$_{2}$-cap layers, J $_{ c }$ of YBCO films decreased from 4.23×10$^{6}$ A/cm$^{2}$ to 0.47×10$^{6}$ A/cm$^{2}$. The FWHM values of the omega scan rocking curves of YBCO films decreased from 3.71 to 1.84° and the phi scan rocking curves from 6.68 to 4.91° with improvement of CeO$_{2}$-cap layer texture. Our results indicated that the fabrication of high texture quality of CeO$_{2}$-cap layer was necessary for the epitaxial growth of high-J $_{ c }$ YBCO films. The high-quality YBCO films which are comparable with those grown on single crystal substrates could be achieved on high textured CeO$_{2}$-cap layers buffered metal substrates.
Starting Page	197
Ending Page	200
Page Count	4
File Format	PDF
ISSN	15571939
Journal	Journal of Superconductivity and Novel Magnetism
Volume Number	25
Issue Number	2
e-ISSN	15571947
Language	English
Publisher	Springer US
Publisher Date	2011-08-20
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	YBCO film Texture CeO$_{2}$-cap layer Critical current density PLD Condensed Matter Physics Magnetism, Magnetic Materials Strongly Correlated Systems, Superconductivity Characterization and Evaluation of Materials
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Condensed Matter Physics

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