Volume 114, Number 4, May 2016
|Number of page(s)||6|
|Section||Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties|
|Published online||23 June 2016|
Enhancement of the Cooper-pair splitting in the Fano interferometer
College of Sciences, Northeastern University - Shenyang 110819, China
Received: 28 March 2016
Accepted: 2 June 2016
We investigate the Andreev transports through a single-dot Fano interferometer with a side-coupled superconductor. It is found that when a finite magnetic flux threads through this structure, its induced phase factor adjusts the local and crossed Andreev reflections in different manners. Moreover, the crossed Andreev reflection has the opportunity to be enhanced, accompanied by the suppression of the local Andreev reflection. Such a result also exists when the intradot Coulomb interaction is taken into account. Therefore, this structure can be a promising candidate for the enhancement of the Cooper-pair splitting.
PACS: 74.45.+c – Proximity effects; Andreev reflection; SN and SNS junctions / 73.23.-b – Electronic transport in mesoscopic systems / 73.63.Kv – Quantum dots
© EPLA, 2016
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.