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Theory of the Josephson effect in unconventional superconducting junctions with diffusive barriers
http://hdl.handle.net/2237/8821
http://hdl.handle.net/2237/8821e4c4e428-0ed6-484c-8d2e-59265dd474b5
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
PhysRevB_75-094514.pdf (1.3 MB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
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| 公開日 | 2007-10-11 | |||||
| タイトル | ||||||
| タイトル | Theory of the Josephson effect in unconventional superconducting junctions with diffusive barriers | |||||
| 言語 | en | |||||
| 著者 |
Yokoyama, T.
× Yokoyama, T.× Tanaka, Y.× Golubov, A.A. |
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| アクセス権 | ||||||
| アクセス権 | open access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||
| 権利 | ||||||
| 言語 | en | |||||
| 権利情報 | Copyright: American Physical Society, All rights reserved. | |||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | We study theoretically the Josephson effect in junctions based on unconventional superconductors with diffusive barriers, using the quasiclassical Green’s function formalism. Generalized boundary conditions at junction interfaces applicable to unconventional superconductors are derived by calculating a matrix current within the circuit transport theory. Applying these boundary conditions, we have calculated the Josephson current in structures with various pairing symmetries. A number of predictions are made: (a) nonmonotonic temperature dependence in d-wave superconductor/diffusive normal metal/d-wave superconductor (D/DN/D) junctions, (b) anomalous current-phase relations in p-wave superconductor/diffusive normal metal/p-wave superconductor (P/DN/P) junctions, (c) second harmonics in D/DN/D and P/DN/P junctions, (d) a double-peak structure of the critical current in D/DF/D junctions, and (e) enhanced Josephson current by the exchange field in S/DF/P junctions. We have also investigated peculiarities of the Josephson coupling in D/DF/D, P/DF/P, and S/DF/P junctions. An oscillatory behavior of the supercurrent and the second harmonics in the current-phase relation is studied as a function of the length of the diffusive ferromagnet. | |||||
| 言語 | en | |||||
| 出版者 | ||||||
| 出版者 | American Physical Society | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプresource | http://purl.org/coar/resource_type/c_6501 | |||||
| タイプ | journal article | |||||
| 出版タイプ | ||||||
| 出版タイプ | VoR | |||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
| DOI | ||||||
| 関連タイプ | isVersionOf | |||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | https://doi.org/10.1103/PhysRevB.75.094514 | |||||
| ISSN | ||||||
| 収録物識別子タイプ | PISSN | |||||
| 収録物識別子 | 1098-0121 | |||||
| 書誌情報 |
en : PHYSICAL REVIEW B 巻 75, 号 9, p. 094514-094514, 発行日 2007-03 |
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| フォーマット | ||||||
| 値 | application/pdf | |||||
| 著者版フラグ | ||||||
| 値 | publisher | |||||
| URI | ||||||
| 識別子 | http://hdl.handle.net/2237/8821 | |||||
| 識別子タイプ | HDL | |||||
