書誌事項
- タイトル別名
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- Jc Anisotropy and the Columnar-grain Texture in MgB2 Thin Films
- MgB2薄膜における柱状晶結晶配向とJcの異方性
- MgB2 ハクマク ニ オケル チュウジョウショウ ケッショウ ハイコウ ト Jc ノ イホウセイ
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説明
We prepared MgB2 thin films using an electron-beam evaporation technique. TEM observation of the detailed microstructure for the films with and without substrate-spin during deposition revealed that the MgB2 columnar grains align in the direction of B flux. Jc of the film is higher in perpendicular fields than in parallel fields, whereas Bc2 and Birr have the opposite anisotropy. A detailed study on the relationship between the Jc anisotropy and the texture geometry of MgB2 columnar grains revealed that Jc becomes maximal where the magnetic field direction aligns in the direction of the MgB2 columnar-grain boundaries. The results indicate conclusively that the columnar-grain boundaries in MgB2 act as effective pinning centers.
収録刊行物
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- 低温工学
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低温工学 41 (11), 481-488, 2006
公益社団法人 低温工学・超電導学会 (旧 社団法人 低温工学協会)
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詳細情報 詳細情報について
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- CRID
- 1390001204614291328
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- NII論文ID
- 130004871063
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- NII書誌ID
- AN00333419
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- COI
- 1:CAS:528:DC%2BD2sXitFyquw%3D%3D
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- ISSN
- 18800408
- 03892441
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- NDL書誌ID
- 8596568
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
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- 抄録ライセンスフラグ
- 使用不可