Fractional ac Josephson effect in unconventional superconductors
Vernadsky National Library of Ukraine
Переглянути архів Інформація| Поле | Співвідношення | |
| Title |
Fractional ac Josephson effect in unconventional superconductors
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| Creator |
Hyok-Jon Kwon
Sengupta, K. Yakovenko, V.M. |
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| Subject |
Сверхпроводимость и мезоскопические структуры
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| Description |
For certain orientations of Josephson junctions between two px-wave or two d-wave superconductors, the subgap Andreev bound states produce a 4π-periodic relation between the Josephson current I and the phase difference:φ I sin(φ/2). Consequently, the ac Josephson current has the fractional frequency eV h, where V is the dc voltage. In the tunneling limit, the Josephson current is proportional to the first power (not square) of the electron tunneling amplitude. Thus, the Josephson current between unconventional superconductors is carried by ingle electrons, rather than by Cooper pairs. The fractional ac Josephson effect can be observed experimentally by measuring frequency spectrum of microwave radiation from the junction |
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| Date |
2017-06-10T06:53:07Z
2017-06-10T06:53:07Z 2004 |
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| Type |
Article
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| Identifier |
Fractional ac Josephson effect in unconventional superconductors / Hyok-Jon Kwon, K. Sengupta, V.M. Yakovenko // Физика низких температур. — 2004. — Т. 30, № 7-8. — С. 814-822. — Бібліогр.: 41 назв. — англ.
0132-6414 PACS: 74.50.+r, 74.70.Kn, 74.72.–h http://dspace.nbuv.gov.ua/handle/123456789/119836 |
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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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