Superconductivity in a Ferromagnetic Layered Compound
Physical Review B - Condensed Matter and Materials Physics 62 巻 21 号
14541-14546 頁
2000 発行
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| ファイル情報(添付) | |
| タイトル ( eng ) |
Superconductivity in a Ferromagnetic Layered Compound
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| 作成者 |
Hata Satomi
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| 収録物名 |
Physical Review B - Condensed Matter and Materials Physics
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| 巻 | 62 |
| 号 | 21 |
| 開始ページ | 14541 |
| 終了ページ | 14546 |
| 抄録 |
We examine superconductivity in layered systems with large Fermi-surface splitting due to coexisting ferromagnetic layers. In particular, the hybrid ruthenate-cuprate compound RuSr2GdCu2O8 is examined on the coexistence of the superconductivity and the ferromagnetism, which has been observed recently. We calculate critical fields of the superconductivity taking into account the Fulde-Ferrell-Larkin-Ovchinnikov state in a model with Fermi-surfaces which shapes are similar to those obtained by a band calculation. It is shown that the critical field is enhanced remarkably due to a Fermi-surface effect, and can be high enough to make the coexistence possible in a microscopic scale. We also clarify the direction of the spatial oscillation of the order parameter, which may be observed by scanning tunneling microscope experiments.
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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 |
The American Physical Society
|
| 発行日 | 2000 |
| 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] 10.1103/PhysRevB.62.14541
[DOI] http://dx.doi.org/10.1103/PhysRevB.62.14541
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