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Enhancement of critical current density and vortex activation energy in proton-irradiated Co-doped BaFe2As2
https://repo.qst.go.jp/records/46667
https://repo.qst.go.jp/records/46667a1221335-cc8c-499c-93be-8cc9a0122ef8
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2013-12-11 | |||||
| タイトル | ||||||
| タイトル | Enhancement of critical current density and vortex activation energy in proton-irradiated Co-doped BaFe2As2 | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
Toshihiro, Taen
× Toshihiro, Taen× Yasuyuki, Nakajima× Tsuyoshi, Tamegai× Hisashi, Kitamura× 田縁 俊光× 仲島 康行× 為ケ井 強× 北村 尚 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | The effect of proton irradiation in Ba(Fe0.93Co0.07)2As2 single crystals is reported. We analyze temperature dependence of the current density and normalized flux relaxation rate in the framework of the collective-creep model. The glassy exponent and barrier height for flux creep are directly determined by Maley's method. Our model functions for barrier height and critical current density in the absence of flux creep are explained by the superposition of δTc and δl pinnings. We also approach true critical current density by means of the generalized inversion scheme, and the obtained result is in reasonable agreement with our model function. The proton-irradiation effect on temperature dependence of the current density and normalized relaxation rate can be summarized as doubling of the barrier height at the beginning of flux creep. | |||||
| 書誌情報 |
Physical Review B 巻 86, 号 9, p. 094527-1-094527-5, 発行日 2012-09 |
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| 出版者 | ||||||
| 出版者 | the American Physical Society | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 1098-0121 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1103/PhysRevB.86.094527 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | http://link.aps.org/doi/10.1103/PhysRevB.86.094527 | |||||
| 関連名称 | http://link.aps.org/doi/10.1103/PhysRevB.86.094527 | |||||
