Fractional ac Josephson effect in unconventional superconductors
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 freque...
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| Дата: | 2004 |
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| Автори: | , , |
| Формат: | Стаття |
| Мова: | English |
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Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2004
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| Назва видання: | Физика низких температур |
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| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/119836 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | 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. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| id |
irk-123456789-119836 |
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dspace |
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irk-123456789-1198362017-06-11T03:04:23Z Fractional ac Josephson effect in unconventional superconductors Hyok-Jon Kwon Sengupta, K. Yakovenko, V.M. Сверхпроводимость и мезоскопические структуры 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 2004 Article 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 en Физика низких температур Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| language |
English |
| topic |
Сверхпроводимость и мезоскопические структуры Сверхпроводимость и мезоскопические структуры |
| spellingShingle |
Сверхпроводимость и мезоскопические структуры Сверхпроводимость и мезоскопические структуры Hyok-Jon Kwon Sengupta, K. Yakovenko, V.M. Fractional ac Josephson effect in unconventional superconductors Физика низких температур |
| 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 |
| format |
Article |
| author |
Hyok-Jon Kwon Sengupta, K. Yakovenko, V.M. |
| author_facet |
Hyok-Jon Kwon Sengupta, K. Yakovenko, V.M. |
| author_sort |
Hyok-Jon Kwon |
| title |
Fractional ac Josephson effect in unconventional superconductors |
| title_short |
Fractional ac Josephson effect in unconventional superconductors |
| title_full |
Fractional ac Josephson effect in unconventional superconductors |
| title_fullStr |
Fractional ac Josephson effect in unconventional superconductors |
| title_full_unstemmed |
Fractional ac Josephson effect in unconventional superconductors |
| title_sort |
fractional ac josephson effect in unconventional superconductors |
| publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| publishDate |
2004 |
| topic_facet |
Сверхпроводимость и мезоскопические структуры |
| url |
http://dspace.nbuv.gov.ua/handle/123456789/119836 |
| citation_txt |
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. |
| series |
Физика низких температур |
| work_keys_str_mv |
AT hyokjonkwon fractionalacjosephsoneffectinunconventionalsuperconductors AT senguptak fractionalacjosephsoneffectinunconventionalsuperconductors AT yakovenkovm fractionalacjosephsoneffectinunconventionalsuperconductors |
| first_indexed |
2023-10-18T20:35:32Z |
| last_indexed |
2023-10-18T20:35:32Z |
| _version_ |
1796150602611294208 |