Upper critical field in the electron-doped layered superconductor ZrNCl-0.7 : Magnetoresistance studies
Physical review. B 72 巻
020501- 頁
2005 発行
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| ファイル情報(添付) | |
| タイトル ( eng ) |
Upper critical field in the electron-doped layered superconductor ZrNCl-0.7 : Magnetoresistance studies
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| 作成者 |
Tou Hideki
Tanaka Y. J.
Sera M.
Taguchi Y.
Sasaki T.
Iwasa Y.
Zhu L.
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| 収録物名 |
Physical review. B
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| 巻 | 72 |
| 開始ページ | 020501 |
| 抄録 |
We report magnetoresistance measurements of layered superconductor ZrNCl0.7 at high magnetic fields (H) as high as 27 T and temperatures (T) as low as 0.5 K. The T dependence of the upper critical field Hc2(T) for Hc and Hc was obtained. Hc2(T) starts to increase with a gentle slope near Tc(0) followed by a steep slope with decreasing T, implying the dimensional crossover of the interplane coherence length from three dimensional to two dimensional (2D). The Hc2(T) is found to be anisotropic for the field direction, where the slope of H=(dHc2/dT) near H1 T can be estimated as H–22.1 kOe/K and H–4.9 kOe/K for Hc and Hc, respectively. The obtained anisotropy parameter 4.5 gives evidence for the 2D characteristic of the superconducting state in ZrNCl0.7.
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| 言語 |
英語
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| 資源タイプ | 学術雑誌論文 |
| 出版者 |
The American Physical Society
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| 発行日 | 2005 |
| 権利情報 |
Copyright (c) 2005 The American Physical Society
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| 出版タイプ | Version of Record（出版社版。早期公開を含む） |
| アクセス権 | オープンアクセス |
| 収録物識別子 |
[ISSN] 1098-0121
[DOI] 10.1103/PhysRevB.72.020501
[DOI] http://dx.doi.org/10.1103/PhysRevB.72.020501
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