Chiral symmetry breaking and the Josephson current in a ballistic superconductor–quantum wire–superconductor junction
Vernadsky National Library of Ukraine
Переглянути архів Інформація| Поле | Співвідношення | |
| Title |
Chiral symmetry breaking and the Josephson current in a ballistic superconductor–quantum wire–superconductor junction
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| Creator |
Krive, I.V.
Gorelik, L.Y. Shekhter, R.I. Jonson, M. |
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| Subject |
Свеpхпpоводимость, в том числе высокотемпеpатуpная
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| Description |
We evaluate the Josephson current through a quasi-1D quantum wire coupled to bulk superconductors. It is shown that the interplay of Rashba spin–orbit interaction and Zeeman splitting results in the appearence of a Josephson current even in the absence of any phase difference between the superconductors. In a transparent junction (D≅1) at low temperatures this anomalous supercurrent Jan appears abruptly for a Zeeman splitting of the order of the Andreev level spacing as the magnetic field is varied. In a low transparency (D << 1) junction one has Jan √D under special (resonance) conditions. In the absence of Zeeman splitting the anomalous supercurrent disappears. We have investigated the influence of dispersion asymmetry induced by the Rashba interaction in quasi-1D quantum wires on the critical Josephson current and have shown that the breakdown of chiral symmetry enhances the supercurrent. |
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| Date |
2017-06-08T08:02:28Z
2017-06-08T08:02:28Z 2004 |
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| Type |
Article
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| Identifier |
Chiral symmetry breaking and the Josephson current in a ballistic superconductor–quantum wire–superconductor junction / I.V. Krive, L.Y. Gorelik, R.I. Shekhter, M. Jonson // Физика низких температур. — 2004. — Т. 30, № 5. — С. 535-543. — Бібліогр.: 27 назв. — англ.
0132-6414 PACS: 74.80.Fp, 31.30.Gs, 71.70.Ej, 73.20.Dx http://dspace.nbuv.gov.ua/handle/123456789/119722 |
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| Language |
en
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| Relation |
Физика низких температур
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| Publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
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