Interlayer spin-singlet pairing induced by magnetic interactions in an antiferromagnetic superconductor
Physical Review B - Condensed Matter and Materials Physics 72 巻 13 号
1-7 頁
2005-10-01 発行
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| ファイル情報(添付) | |
| タイトル ( eng ) |
Interlayer spin-singlet pairing induced by magnetic interactions in an antiferromagnetic superconductor
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| 作成者 | |
| 収録物名 |
Physical Review B - Condensed Matter and Materials Physics
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| 巻 | 72 |
| 号 | 13 |
| 開始ページ | 1 |
| 終了ページ | 7 |
| 抄録 |
It is shown that interlayer spin-singlet Cooper pairing is induced by magnetic interactions in a metallic antiferromagnet of stacked conductive layers in which each layer is ferromagnetically polarized and they order antiferromagnetically in stacking direction. As a result, the antiferromagnetic long-range order and superconductivity coexist at low temperatures. It is shown that TAF>Tc except for in a very limited parameter region unless TAF=0, where TAF and Tc denote the antiferromagnetic and superconducting transition temperatures, respectively. It is found that the exchange field caused by the spontaneous staggered magnetization does not affect superconductivity at all, even if it is very large. The resultant superconducting order parameter has a horizontal line node, and is isotropic in spin space in spite of the anisotropy of the background magnetic order. We discuss the possible relevance of the present mechanism to the antiferromagnetic heavy fermion superconductors UPd2Al3 and CePt3Si.
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| NDC分類 |
物理学 [ 420 ]
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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 |
American Physical Society
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| 発行日 | 2005-10-01 |
| 権利情報 |
Copyright (c) 2000 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] http://dx.doi.org/10.1103/PhysRevB.61.R14936
～の異版である
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