NDLI: Properties of YBCO on <formula formulatype=inline> <tex Notation=TeX>${rm LaMnO}_{3}$</tex></formula>-Capped IBAD MgO-Templates Without Homo-Epitaxial MgO Layer

Content Provider	IEEE Xplore Digital Library
Author	Polat, O. Aytug, T. Paranthaman, M. Kyunghoon Kim Yifei Zhang Cantoni, C. Zuev, Y.L. Goyal, A. Thompson, J.R. Christen, D.K. Xuming Xiong Selvamanickam, V.
Copyright Year	2002
Abstract	Previously, it has been well established that in an IBAD architecture for coated conductors, (1) LaMnO₃ (LMO) buffer layers are structurally and chemically compatible with an underlying homo-epitaxial MgO layer and (2) high current density YBCO films can be grown on these LMO templates. In the present work, the homo-epi MgO layer has been successfully eliminated and a LMO cap layer was grown directly on the IBAD-MgO template. The performance of the LMO/IBAD-MgO samples has been qualified by depositing 1 mum-thick YBCO coatings by pulsed laser deposition. Electrical transport measurements of YBCO films on the standard (with homo-epi MgO) and simplified (without homo-epi MgO) IBAD architectures were carried out. The angular dependence of critical current density (J _c) is similar for both IBAD architectures. XRD measurements indicate good, c-axis aligned YBCO films. Transmission electron microscopy (TEM) images reveal that microstructures of YBCO/LMO/IBAD-MgO and YBCO/LMO/homo-epi MgO/IBAD-MgO templates are similar. These results demonstrate the strong potential of using LMO as a single cap layer directly on IBAD-MgO for the development of a simplified IBAD architecture.
Sponsorship	Council on Superconductivity Appl. Superconductivity Conference Inc MIT
Starting Page	3315
Ending Page	3318
Page Count	4
File Size	1123075
File Format	PDF
ISSN	10518223
Volume Number	19
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-06-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Yttrium barium copper oxide Conductive films Pulsed laser deposition Buffer layers Chemicals Current density Coatings Optical pulses Electric variables measurement Measurement standards PLD-YBCO Buffers critical current density IBAD-MgO LMO
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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