High Pressure Oxygen Treatment and the Substitution of Sr for Ba on (Nd_<1/3>Ba_<2/3>)_2(Ce_<1/3>Nd_<2/3>)_2Cu_3O_y Superconductor
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概要
- 論文の詳細を見る
Substitution of Sr for Ba in the (Nd_<1/3>Ba_<2/3>)_2(Ce_<1/3>Nd_<2/3>)_2Cu_3O_y superconductor has been performed together with high pressure oxygen treatment, and the relationship among Sr content, lattice parameter, hole concentration and superconducting properties has been clarified. It has been found that there is a strong relationship between superconducting transition temperature (T_c) and c-axis length. The highest T_c_<onset> and T_c_<zero> of the (Nd_<1/3>(Ba_<3/4>Sr_<1/4>)_<2/3>(Ce_<1/3>Nd_<2/3>)_2Cu_3O_y treated under 1300 aim oxygen pressure at 600℃ for 24 hours are 59.3 K and 41.4 K, respectively. These transition temperatures are about 10 K higher than those of unsubstituted one.
- 社団法人応用物理学会の論文
- 1989-11-20
著者
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KAWAI Tomoji
The Institute of Scientific and Industrial Research, Osaka University
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Tanaka M
Production Engineering Research Laboratory Hitachi Ltd.
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Kawai Tomoji
The Institute Of Science And Industrial Research (isir-sanken) Osaka University
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Tanaka M
Manufacturing Development Center Mitsubishi Electric Corporation
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Tanaka M
Toshiba Corp. Kawasaki Jpn
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Shimizu K
Electrotechnical Laboratory
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Tanaka M
Institute Of Multidisciplinary Research For Advanced Materials Tohoku University
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KITANO Yukishige
Toray Research Center
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NOBUMASA Hitoshi
Composite Material Lab., Toray Ind. Inc.
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SHIMIZU Kazuharu
Composite Material Lab., Toray Ind. Inc.
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Nobumasa H
Toray Ind. Inc. Shiga
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TANAKA Masataka
Toray Research Center Inc.
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Kitano Yukishige
Toray Research Center Inc.
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