Issue |
Europhys. Lett.
Volume 39, Number 6, September 1997
|
|
---|---|---|
Page(s) | 651 - 656 | |
Section | Condensed matter: electronic, structure, electrical, magnetic and optical properties | |
DOI | https://doi.org/10.1209/epl/i1997-00409-9 | |
Published online | 01 September 2002 |
Resonant Josephson current
Racah Institute of Physics,
Hebrew University, Jerusalem, 91904, Israel
Received:
23
May
1997
Accepted:
28
July
1997
It is shown that the resonant Josephson current where both electrons of a Cooper pair tunnel resonantly cannot take place with just one intermediate localized state. A true resonance is possible only if two electrons of a Cooper pair tunnel through two different localized states in the junction with energies close to different edges of the superconducting gap. The tunneling amplitude is not described by the Breit-Wigner formula and its value is strongly affected by the singularity of the density of states in superconductors. This amplitude and the critical current are calculated.
PACS: 74.50.+r – Proximity effects, weak links, tunneling phenomena, and Josephson effects / 73.40.Gk – Tunneling
© EDP Sciences, 1997
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.