Title
The Cooper problem in nanoscale : enhancement of the coupling due to confinement The Cooper problem in nanoscale : enhancement of the coupling due to confinement
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
Bristol ,
Subject
Physics
Source (journal)
Superconductor science and technology. - Bristol
Volume/pages
25(2012) :12 , p. 1-5
ISSN
0953-2048
Article Reference
124001
Carrier
E-only publicatie
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
In 1956 Cooper demonstrated (1956 Phys. Rev. 104 1189) that, no matter how weak the attraction is, two electrons in three-dimensional (3D) space just above the Fermi sea could be bound. In this work we investigate the influence of confinement on the binding energy of a Cooper pair. We show that confinement-induced modification of the Fermi sea results in a significant increase of the binding energy, when the bottom of an energy subband is very close to the Fermi surface.
E-info
https://repository.uantwerpen.be/docman/iruaauth/a7b8c4/33c3544.pdf
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