Upper critical fields of quasi-low-dimensional superconductors with coexisting singlet and triplet pairing interactions in parallel magnetic fields

Physical Review B - Condensed Matter and Materials Physics 62 巻 3524- 頁 2000 発行
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タイトル ( eng )
Upper critical fields of quasi-low-dimensional superconductors with coexisting singlet and triplet pairing interactions in parallel magnetic fields
作成者
収録物名
Physical Review B - Condensed Matter and Materials Physics
62
開始ページ 3524
抄録
Quasi-low-dimensional type II superconductors in parallel magnetic fields are studied when singlet pairing interactions and relatively weak triplet pairing interactions coexist. Singlet and triplet components of order parameter are mixed at high fields, and at the same time an inhomogeneous superconducting state called a Fulde-Ferrell-Larkin-Ovchinnikov state occurs. As a result, the triplet pairing interactions enhance the upper critical field of superconductivity remarkably even at temperatures far above the transition temperature of parallel spin pairing. It is found that the enhancement is very large even when the triplet pairing interactions are so weak that a high field phase of parallel spin pairing may not be observed in practice. A possible relvance of the result in organic superconductors and a hybrid-ruthenate-cuprate superconductor is discussed.
NDC分類
物理学 [ 420 ]
言語
英語
資源タイプ 学術雑誌論文
発行日 2000
権利情報
Copyright (c) 2000 The American Physical Society
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.62.3524
[DOI] http://dx.doi.org/10.1103/PhysRevB.62.3524