DocumentCode
1075276
Title
Magnetic Field Dependence of Critical Current Density and Microstructure in Sm1+xBa2−xCu3Oy Films
Author
Miura, Masashi ; Yoshida, Yutaka ; Ozaki, Toshinori ; Ichino, Yusuke ; Masakazu, Mutoh ; Funaki, Shuhei ; Takai, Yoshiaki ; Matsumoto, Kaname ; Ichinose, Ataru ; Horii, Shigeru ; Mukaida, Masashi ; Awaji, Satoshi ; Watanabe, Kazuo
Author_Institution
Nagoya Univ., Kawaguchi
Volume
17
Issue
2
fYear
2007
fDate
6/1/2007 12:00:00 AM
Firstpage
3247
Lastpage
3250
Abstract
We have reported high-Jc Sm1+x,Ba2-x,Cu3Oy (SmBCO) films on single crystal MgO prepared by pulsed laser deposition (PLD). In this study, we fabricate SmBCO films on metallic substrates using low temperature growth (LTG) technique, to investigate the availability of the LTG technique for coated conductors. The LTG-SmBCO films are deposited on PLD - CeO2/IBAD - YSZ/Hastelloy tapes. The critical current density (Jc) is 4.7 MA/cm2 (77 K, B//c, B = OT) and 0.23 MA/cm2 (77 K, B//c, B = 5 T). Furthermore, at 65 K and B = 17 T, the Jc of LTG-SmBCO film (B//c) reaches 0.03 MA /cm . These values are higher than those of conventional PLD-YBCO and PLD-SmBCO films. From these results, we suggest that the LTG is an effective technique for improving the magnetic field dependence of Jc of coated conductors.
Keywords
barium compounds; critical current density (superconductivity); crystal microstructure; high-temperature superconductors; pulsed laser deposition; samarium compounds; superconducting thin films; MgO surface; SmBa2Cu3O; critical current density; crystal quality; films; low temperature growth; magnetic flux density 17 T; magnetic flux density 5 T; metallic substrates; microstructure; pulsed laser deposition; temperature 65 K; temperature 77 K; Conductive films; Conductors; Critical current density; Crystal microstructure; Magnetic fields; Magnetic films; Optical pulses; Pulsed laser deposition; Substrates; Temperature; ${rm SmBa}_{2}{rm Cu}_{3}{rm O}_{y}$
fLanguage
English
Journal_Title
Applied Superconductivity, IEEE Transactions on
Publisher
ieee
ISSN
1051-8223
Type
jour
DOI
10.1109/TASC.2007.898358
Filename
4278204
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