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, Fabrizio; 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]

Switching the sign of Josephson current through Aharonov-Bohm interferometry

DOLCINI, FABRIZIO;
2007

Abstract

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.
File in questo prodotto:
File Dimensione Formato  
Dolcini-Giazotto_PRB_75_140511_2007.pdf

accesso aperto

Tipologia: 2. Post-print / Author's Accepted Manuscript
Licenza: PUBBLICO - Tutti i diritti riservati
Dimensione 263.96 kB
Formato Adobe PDF
263.96 kB Adobe PDF Visualizza/Apri
Pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2303680
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo