The electromagnetostatic Aharonov-Bohm effect is proposed as a tool to realize a fully controllable Josephson π junction. Both the sign and the magnitude of the supercurrent can be tuned in a ring-shaped ballistic normal region coupled to superconducting electrodes by varying the magnetic flux and the electric field around suitable values. We provide a theoretical description of the system within the scattering matrix theory and discuss its implementation in a realistic setup.
Switching the sign of Josephson current through Aharonov-Bohm interferometry / DOLCINI F.; GIAZOTTO F.. - In: PHYSICAL REVIEW. B, CONDENSED MATTER AND MATERIALS PHYSICS. - ISSN 1098-0121. - STAMPA. - 75:14(2007), pp. 140511-1-140511-4. [10.1103/PhysRevB.75.140511]
Titolo: | Switching the sign of Josephson current through Aharonov-Bohm interferometry | |
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Data di pubblicazione: | 2007 | |
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Digital Object Identifier (DOI): | http://dx.doi.org/10.1103/PhysRevB.75.140511 | |
Appare nelle tipologie: | 1.1 Articolo in rivista |
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File | Descrizione | Tipologia | Licenza | |
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Dolcini-Giazotto_PRB_75_140511_2007.pdf | 2. Post-print / Author's Accepted Manuscript | PUBBLICO - Tutti i diritti riservati | Visibile a tuttiVisualizza/Apri |
http://hdl.handle.net/11583/2303680