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  1. B200 工学部/工学研究科
  2. B200a 雑誌掲載論文
  3. 学術雑誌

Quasiclassical Green's function theory of the Josephson effect in chiral ρ-wave superconductor/diffusive normal metal/chiral ρ-wave superconductor junctions

http://hdl.handle.net/2237/8824
500b16d3-b1c5-40b6-85de-2f5e3426f6df
名前 / ファイル ライセンス アクション
PhysRevB_75-134508.pdf PhysRevB_75-134508.pdf (595.7 kB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2007-10-12
タイトル
タイトル Quasiclassical Green's function theory of the Josephson effect in chiral ρ-wave superconductor/diffusive normal metal/chiral ρ-wave superconductor junctions
著者 Sawa, Y.

× Sawa, Y.

WEKO 19334

Sawa, Y.

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Yokoyama, T.

× Yokoyama, T.

WEKO 19335

Yokoyama, T.

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Tanaka, Y.

× Tanaka, Y.

WEKO 19336

Tanaka, Y.

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A.A., Golubov

× A.A., Golubov

WEKO 19337

A.A., Golubov

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権利
権利情報 Copyright: American Physical Society, All rights reserved.
抄録
内容記述 We study the Josephson effect in chiral p-wave superconductor/diffusive normal metal (DN)/chiral p-wave superconductor (CP/DN/CP) junctions using quasiclassical Green’s function formalism with proper boundary conditions. The px+ipy-wave symmetry of superconducting order parameter is chosen which is believed to be the pairing state in Sr2RuO4. We show that the superconducting pair amplitude induced in DN has an oddfrequency spin-triplet s-wave symmetry and is an odd function of Matsubara frequency. Despite the peculiar symmetry properties of the Cooper pairs, the behavior of the Josephson current is rather conventional. We have found that the current-phase relation is almost sinusoidal and the Josephson current is proportional to exp(−L/ξ), where ξ is the coherence length in DN and L is the thickness of the DN layer. We also calculate the Josephson current in CP/diffusive ferromagnet metal/CP junctions and show that the 0-π transition can be realized by varying temperature or thickness L similar to the case of conventional s-wave junctions. The obtained results may help to explore the properties of superconducting state in Sr2RuO4.
内容記述タイプ Abstract
出版者
出版者 American Physical Society
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
DOI
関連識別子
識別子タイプ DOI
関連識別子 http://dx.doi.org/10.1103/PhysRevB.75.134508
ISSN
収録物識別子タイプ ISSN
収録物識別子 1098-0121
書誌情報 PHYSICAL REVIEW B

巻 75, 号 13, p. 134508-134508, 発行日 2007-04
フォーマット
application/pdf
著者版フラグ
値 publisher
URI
識別子 http://hdl.handle.net/2237/8824
識別子タイプ HDL
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