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Письма в Журнал экспериментальной и теоретической физики, 2005, том 82, выпуск 12, страницы 863–867
(Mi jetpl1645)
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Эта публикация цитируется в 3 научных статьях (всего в 3 статьях)
КОНДЕНСИРОВАННЫЕ СРЕДЫ
Josephson Effect in a Coulomb-blockaded SINIS Junction
P. M. Ostrovsky, M. V. Feigel'man L. D. Landau Institute for Theoretical Physics RAS,
119334 Moscow, Russia
Аннотация:
The problem of Josephson current through Coulomb-blocked nanoscale superconductor-normal-superconductor structure with tunnel contacts is reconsidered. Two different contributions to the phase-biased supercurrent $I(\varphi)$ are identified, which are dominant in the limits of weak and strong Coulomb interaction. Full expression for the free energy valid at arbitrary Coulomb strength is found. The current derived from this free energy interpolates between known results for weak and strong Coulomb interaction as phase bias changes from $0$ to $\pi$. In the broad range of Coulomb strength the current-phase relation is substantially non-sinusoidal and qualitatively different from the case of semi-ballistic SNS junctions. Coulomb interaction leads to appearance of a local minimum in the current at some intermediate value of phase difference applied to the junction.
Поступила в редакцию: 10.11.2005
Образец цитирования:
P. M. Ostrovsky, M. V. Feigel'man, “Josephson Effect in a Coulomb-blockaded SINIS Junction”, Письма в ЖЭТФ, 82:12 (2005), 863–867; JETP Letters, 82:12 (2005), 763–767
Образцы ссылок на эту страницу:
https://www.mathnet.ru/rus/jetpl1645 https://www.mathnet.ru/rus/jetpl/v82/i12/p863
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Страница аннотации: | 162 | PDF полного текста: | 51 | Список литературы: | 36 |
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