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Title: Effect of CeO{sub 2} buffer layer thickness on the structures and properties of YBCO coated conductors.

Abstract

Biaxially textured YBa{sub 2}Cu{sub 3}O{sub 7-x} (YBCO) films were grown on inclined-substrate-deposited (ISD) MgO-textured metal substrates by pulsed laser deposition. CeO{sub 2} was deposited as a buffer layer prior to YBCO growth. CeO{sub 2} layers of different thickness were prepared to evaluate the thickness dependence of the YBCO films. The biaxial alignment features of the films were examined by X-ray diffraction 2{theta}-scans, pole-figure, {phi}-scans and rocking curves of {Omega} angles. The significant influence of the CeO{sub 2} thickness on the structure and properties of the YBCO films were demonstrated and the optimal thickness was found to be about 10 nm. High values of T{sub c} = 91 K and J{sub c} = 5.5 x 10{sup 5} A/cm{sup 2} were obtained on YBCO films with optimal CeO{sub 2} thickness at 77 K in zero field. The possible mechanisms responsible for the dependence of the structure and the properties of the YBCO films on the thickness of the CeO{sub 2} buffer layers are discussed.

Authors:
; ; ; ; ; ;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
Scientific Research Foundation for the Returned Overseas Chinese Scholars
OSTI Identifier:
952939
Report Number(s):
ANL/ES/JA-64329
Journal ID: ISSN 0169-4332; ASUSEE; TRN: US200914%%82
DOE Contract Number:  
DE-AC02-06CH11357
Resource Type:
Journal Article
Resource Relation:
Journal Name: Appl. Surf. Sci.; Journal Volume: 253; Journal Issue: 2007
Country of Publication:
United States
Language:
ENGLISH
Subject:
36 MATERIALS SCIENCE; CERIUM OXIDES; BUFFERS; DEPOSITION; THICKNESS; YTTRIUM OXIDES; BARIUM OXIDES; COPPER OXIDES; COATINGS; FILMS; TRANSITION TEMPERATURE; MORPHOLOGY

Citation Formats

Li, M., Zhao, X., Ma, B., Dorris, S. E., Balachandran, U., Maroni, V. A., and Wuhan Univ. Effect of CeO{sub 2} buffer layer thickness on the structures and properties of YBCO coated conductors.. United States: N. p., 2007. Web. doi:10.1016/j.apsusc.2007.02.186.
Li, M., Zhao, X., Ma, B., Dorris, S. E., Balachandran, U., Maroni, V. A., & Wuhan Univ. Effect of CeO{sub 2} buffer layer thickness on the structures and properties of YBCO coated conductors.. United States. doi:10.1016/j.apsusc.2007.02.186.
Li, M., Zhao, X., Ma, B., Dorris, S. E., Balachandran, U., Maroni, V. A., and Wuhan Univ. Mon . "Effect of CeO{sub 2} buffer layer thickness on the structures and properties of YBCO coated conductors.". United States. doi:10.1016/j.apsusc.2007.02.186.
@article{osti_952939,
title = {Effect of CeO{sub 2} buffer layer thickness on the structures and properties of YBCO coated conductors.},
author = {Li, M. and Zhao, X. and Ma, B. and Dorris, S. E. and Balachandran, U. and Maroni, V. A. and Wuhan Univ.},
abstractNote = {Biaxially textured YBa{sub 2}Cu{sub 3}O{sub 7-x} (YBCO) films were grown on inclined-substrate-deposited (ISD) MgO-textured metal substrates by pulsed laser deposition. CeO{sub 2} was deposited as a buffer layer prior to YBCO growth. CeO{sub 2} layers of different thickness were prepared to evaluate the thickness dependence of the YBCO films. The biaxial alignment features of the films were examined by X-ray diffraction 2{theta}-scans, pole-figure, {phi}-scans and rocking curves of {Omega} angles. The significant influence of the CeO{sub 2} thickness on the structure and properties of the YBCO films were demonstrated and the optimal thickness was found to be about 10 nm. High values of T{sub c} = 91 K and J{sub c} = 5.5 x 10{sup 5} A/cm{sup 2} were obtained on YBCO films with optimal CeO{sub 2} thickness at 77 K in zero field. The possible mechanisms responsible for the dependence of the structure and the properties of the YBCO films on the thickness of the CeO{sub 2} buffer layers are discussed.},
doi = {10.1016/j.apsusc.2007.02.186},
journal = {Appl. Surf. Sci.},
number = 2007,
volume = 253,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 2007},
month = {Mon Jan 01 00:00:00 EST 2007}
}