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Title: Effect of Yb Substitution on Microstructure and Superconducting Properties of Y{sub 1−x}Yb{sub x}Ba{sub 2}Cu{sub 3}O{sub 7−δ} Films

Abstract

The purpose of this study was to improve the critical current density (J{sub c}) of YBa{sub 2}Cu{sub 3}O{sub 7−δ} (YBCO) superconducting films at high magnetic fields. Thin Y{sub 1−x}Yb{sub x}Ba{sub 2}Cu{sub 3}O{sub 7−δ} (Y{sub 1−x}Yb{sub x}BCO) superconducting films on LaAlO{sub 3} substrates were prepared by modified low-fluorine metal organic deposition method (LF-MOD) in order to investigate the effect of Yb substitution on the microstructure and superconducting properties of a YBCO-coated conductor. In this study, single-phased, c-axial-aligned Y{sub 1−x}Yb{sub x}BCO films were obtained. Yb doping had a little effect on the critical temperature (T{sub c}) and transition width (ΔT) values of Y{sub 1−x}Yb{sub x}BCO films. An abnormal phenomenon was observed that the J{sub c} of Y{sub 1−x}Yb{sub x}BCO films at low field was smaller than that of the pure YBCO film, but the J{sub c} of Y{sub 1−x}Yb{sub x}BCO films at high field was much greater than that of the undoped YBCO film. Compared to pure YBCO film, the J{sub c} values of Y{sub 0.75}Yb{sub 0.25}BCO and Y{sub 0.25}Yb{sub 0.75}BCO films were enhanced by a factor of 8 at 8 T, 65 K, which meant that chemical substitution of Yb into the Y site could improve flux pinning significantly under themore » high magnetic field in Y{sub 1−x}Yb{sub x}BCO coated conductors.« less

Authors:
;  [1];  [2]; ; ; ;  [1]
  1. Beijing University of Technology, The Key Laboratory of Advanced Functional Materials, Ministry of Education (China)
  2. Shenzhen University, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province (China)
Publication Date:
OSTI Identifier:
22773825
Resource Type:
Journal Article
Journal Name:
Journal of Superconductivity and Novel Magnetism
Additional Journal Information:
Journal Volume: 31; Journal Issue: 9; Other Information: Copyright (c) 2018 Springer Science+Business Media, LLC, part of Springer Nature; http://www.springer-ny.com; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1557-1939
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ALUMINATES; BARIUM OXIDES; COPPER OXIDES; CRITICAL CURRENT; CRITICAL TEMPERATURE; DEPOSITION; FLUORINE; HIGH-TC SUPERCONDUCTORS; LANTHANUM COMPOUNDS; MAGNETIC FIELDS; MAGNETIC FLUX; MICROSTRUCTURE; ORGANOMETALLIC COMPOUNDS; SUPERCONDUCTING FILMS; YTTERBIUM; YTTRIUM OXIDES

Citation Formats

Li, Chunyan, Suo, Hongli, Ye, Shuai, Liu, Min, Ma, Lin, Tian, Min, and Wang, Ya. Effect of Yb Substitution on Microstructure and Superconducting Properties of Y{sub 1−x}Yb{sub x}Ba{sub 2}Cu{sub 3}O{sub 7−δ} Films. United States: N. p., 2018. Web. doi:10.1007/S10948-017-4485-7.
Li, Chunyan, Suo, Hongli, Ye, Shuai, Liu, Min, Ma, Lin, Tian, Min, & Wang, Ya. Effect of Yb Substitution on Microstructure and Superconducting Properties of Y{sub 1−x}Yb{sub x}Ba{sub 2}Cu{sub 3}O{sub 7−δ} Films. United States. https://doi.org/10.1007/S10948-017-4485-7
Li, Chunyan, Suo, Hongli, Ye, Shuai, Liu, Min, Ma, Lin, Tian, Min, and Wang, Ya. Sat . "Effect of Yb Substitution on Microstructure and Superconducting Properties of Y{sub 1−x}Yb{sub x}Ba{sub 2}Cu{sub 3}O{sub 7−δ} Films". United States. https://doi.org/10.1007/S10948-017-4485-7.
@article{osti_22773825,
title = {Effect of Yb Substitution on Microstructure and Superconducting Properties of Y{sub 1−x}Yb{sub x}Ba{sub 2}Cu{sub 3}O{sub 7−δ} Films},
author = {Li, Chunyan and Suo, Hongli and Ye, Shuai and Liu, Min and Ma, Lin and Tian, Min and Wang, Ya},
abstractNote = {The purpose of this study was to improve the critical current density (J{sub c}) of YBa{sub 2}Cu{sub 3}O{sub 7−δ} (YBCO) superconducting films at high magnetic fields. Thin Y{sub 1−x}Yb{sub x}Ba{sub 2}Cu{sub 3}O{sub 7−δ} (Y{sub 1−x}Yb{sub x}BCO) superconducting films on LaAlO{sub 3} substrates were prepared by modified low-fluorine metal organic deposition method (LF-MOD) in order to investigate the effect of Yb substitution on the microstructure and superconducting properties of a YBCO-coated conductor. In this study, single-phased, c-axial-aligned Y{sub 1−x}Yb{sub x}BCO films were obtained. Yb doping had a little effect on the critical temperature (T{sub c}) and transition width (ΔT) values of Y{sub 1−x}Yb{sub x}BCO films. An abnormal phenomenon was observed that the J{sub c} of Y{sub 1−x}Yb{sub x}BCO films at low field was smaller than that of the pure YBCO film, but the J{sub c} of Y{sub 1−x}Yb{sub x}BCO films at high field was much greater than that of the undoped YBCO film. Compared to pure YBCO film, the J{sub c} values of Y{sub 0.75}Yb{sub 0.25}BCO and Y{sub 0.25}Yb{sub 0.75}BCO films were enhanced by a factor of 8 at 8 T, 65 K, which meant that chemical substitution of Yb into the Y site could improve flux pinning significantly under the high magnetic field in Y{sub 1−x}Yb{sub x}BCO coated conductors.},
doi = {10.1007/S10948-017-4485-7},
url = {https://www.osti.gov/biblio/22773825}, journal = {Journal of Superconductivity and Novel Magnetism},
issn = {1557-1939},
number = 9,
volume = 31,
place = {United States},
year = {2018},
month = {9}
}