書誌事項
- タイトル別名
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- Peak Effects in Critical Current Densities of Oxide Superconductors
- サンカブツ チョウデンドウタイ ノ リンカイ デンリュウ ミツド ニ オケル ピーク コウカ ダイ2ホウ SmBa2Cu3O7 d チョウデンドウタイ ニ オケル リンカイ デンリュウ ミツド ノ サンソリョウ イゾンセイ
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Stoichiometric SmBa_2Cu_3O_<7-d> samples were prepared by a solid-state reaction method and showed peak effecs in their J_c-H characteristics. The oxygen contents of samples were determined by a coulometric titration method. A sample annealed at 350℃ for 40 hours has the highest peak effect in J_c. The oxygen content of the sample was 6.84,which was the lowest of the samples. The tetragonal phase in the orthorhombic phase was observed in the sample which had the most significant peak effect by TEM observation. On the other hand, the samples annealed for longer times had weaker peak effect. As results of microscopic observation and the TEM observation, a oxygen deficiency was considered to work as pinning centers at 77K and at around 1T to exhibit the peak effect.
Stoichiometric SmBa_2Cu_3O_<7-d> samples were prepared by a solid-state reaction method and showed peak effecs in their J_c-H characteristics. The oxygen contents of samples were determined by a coulometric titration method. A sample annealed at 350℃ for 40 hours has the highest peak effect in J_c. The oxygen content of the sample was 6.84,which was the lowest of the samples. The tetragonal phase in the orthorhombic phase was observed in the sample which had the most significant peak effect by TEM observation. On the other hand, the samples annealed for longer times had weaker peak effect. As results of microscopic observation and the TEM observation, a oxygen deficiency was considered to work as pinning centers at 77K and at around 1T to exhibit the peak effect.
収録刊行物
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- 湘南工科大学紀要
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湘南工科大学紀要 32 (1), 39-45, 1998-03-25
湘南工科大学
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詳細情報 詳細情報について
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- CRID
- 1050001337573330560
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- NII論文ID
- 110000480105
- 120005538867
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- NII書誌ID
- AN10400308
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- ISSN
- 09192549
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- NDL書誌ID
- 5606474
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- 本文言語コード
- ja
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- 資料種別
- departmental bulletin paper
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- データソース種別
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- IRDB
- NDL
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