Superconducting Properties in LTG-Sm1+xBa2-xCu3Oy+Low-Tc Nanoparticle Films under Low Temperature and High Magnetic Field
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- MIURA Masashi
- Dept. of Electrical Engineering and Computer Science, Nagoya University CREST-Japan Science and Technology Agency
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- YOSHIDA Yutaka
- Dept. of Electrical Engineering and Computer Science, Nagoya University CREST-Japan Science and Technology Agency
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- OZAKI Toshinori
- Dept. of Electrical Engineering and Computer Science, Nagoya University CREST-Japan Science and Technology Agency
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- ICHINO Yusuke
- Dept. of Electrical Engineering and Computer Science, Nagoya University CREST-Japan Science and Technology Agency
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- MUTOH Masakazu
- Dept. of Electrical Engineering and Computer Science, Nagoya University CREST-Japan Science and Technology Agency
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- TAKAI Yoshiaki
- Dept. of Electrical Engineering and Computer Science, Nagoya University
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- MATSUMOTO Kaname
- Dept. of Materials Science, Kyoto University CREST-Japan Science and Technology Agency
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- ICHINOSE Ataru
- Electric Power Engineering Research Lab., Central Research Institute of Electric Power Industry CREST-Japan Science and Technology Agency
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- HORII Shigeru
- Dept. of Applied chemistry, University of Tokyo CREST-Japan Science and Technology Agency
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- MUKAIDA Masashi
- Dept. of Materials Science and Engineering, Kyushu University CREST-Japan Science and Technology Agency
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- AWAJI Satoshi
- High Field Laboratory for Superconducting Materials, IMR, Tohoku University
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- WATANABE Kazuo
- High Field Laboratory for Superconducting Materials, IMR, Tohoku University
Bibliographic Information
- Other Title
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- ナノサイズ低Tc相導入Sm1+xBa2‐xCu3Oy薄膜の低温高磁場超伝導特性
- ナノサイズ低Tc相導入Sm1+xBa2-xCu3Oy薄膜の低温高磁場超伝導特性
- ナノサイズ テイTcソウ ドウニュウ Sm1 xBa2 xCu3Oy ハクマク ノ テイオン コウジバ チョウデンドウ トクセイ
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Abstract
We have reported high-Jc Sm1+xBa2-xCu3Oy (SmBCO) films prepared by a low-temperature growth (LTG) technique. The LTG-SmBCO films showed a Jc of 0.28 MA/cm2 (77 K, B//c, B=5 T). However, the Jc of these films in the magnetic fields above 5 T dropped and were lower than that of NbTi wire (4.2 K). In this study, we introduced nanoparticles with low Tc (low-Tc-nanoparticles) into LTG-SmBCO films to improve the Jc at the high magnetic field. The LTG-SmBCO + 1.4 vol.% nanoparticle film result in a Jc of 0.37 MA/cm2 (77 K, B//c, B = 5 T) and 0.10 MA/cm2 (77 K, B//c, B = 8 T). Furthermore, the Jc at 65 K in a field of 16 T (B//c) reached 0.05 MA/cm2. Elemental mapping clarified that LTG-SmBCO + 1.4 vol.% nanoparticle film had nanosized low-Tc particles with an x of 0.15-0.30 and low-Tc network with an x of 0.05-0.15, which were dispersed in the high-Tc matrix. We speculate that the Jc under high magnetic field conditions depends not only on the distribution and size of low-Tc regions, but also on the Sm/Ba composition within the low-Tc regions.
Journal
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- TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan)
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TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan) 41 (10), 428-438, 2006
CRYOGENICS AND SUPERCONDUCTIVITY SOCIETY OF JAPAN
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Keywords
Details 詳細情報について
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- CRID
- 1390001204612822912
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- NII Article ID
- 10018106442
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- NII Book ID
- AN00333419
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- COI
- 1:CAS:528:DC%2BD28Xht12lsrrP
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- ISSN
- 18800408
- 03892441
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- NDL BIB ID
- 8556551
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed