Manifestation of polaronic effects in Josephson currents

Manifestation of polaronic effects in Josephson currents

Parafilo, A.V. ; Krive, I.V. ; Shekhter, R.I. ; Park, Y.W. ; Jonson, M.

Тема: Сверхпроводимость, в том числе высокотемпературная

Інший ID: PACS: 74.45.+c, 85.85.+j, 71.38.–k, 74.78.Na

URI: http://dspace.nbuv.gov.ua/handle/123456789/118648

Посилання: Manifestation of polaronic effects in Josephson currents / A.V. Parafilo, I.V. Krive, R.I. Shekhter, Y.W. Park, M. Jonson // Физика низких температур. — 2013. — Т. 39, № 8. — С. 885–895. — Бібліогр.: 30 назв. — англ.

Підтримка: We thank V. Shumeiko and S. Kulinich for fruitfull discussions. Financial support from the Swedish VR (MJ, RS), the Korean WCU program funded by MEST/NFR (R31-2008-000-10057-0) (MJ), the Knowledge Innovation Program (PKIP) of the Chinese Academy of Sciences (KJCX2.YW.W10) (RS), and the National Academy of Science of Ukraine (4/13-N) (IK, AP) is gratefully ac-knowledged. Partial support for IK was done by the Lead-ing Foreign Research Institute Recruitment Program (2009–00514) of NRF, Korea. IK thanks the Department of Physics at the University of Gothenburg and the De-partment of Physics and Astronomy at the Seoul National University for hospitality.

Дата: 2013

Завантажень: 627

Manifestation of polaronic effects in Josephson currents

Анотація:

Polaronic effects on the Josephson current through a vibrating quantum dot are considered. In the regime of strong electron–vibron interactions they lead to a power-law suppression of the critical current. This is manifested in an anomalous temperature dependence of the critical current at temperatures of the order of the polaronic energy shift.

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