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The Cooper problem in nanoscale : enhancement of the coupling due to confinement

Title data

Croitoru, Mikhail D. ; Vagov, Alexei ; Shanenko, A. A. ; Axt, Vollrath M.:
The Cooper problem in nanoscale : enhancement of the coupling due to confinement.
In: Superconductor Science and Technology. Vol. 25 (2012) Issue 12 . - Art.Nr. 124001, 5 S..
ISSN 1361-6668
DOI: https://doi.org/10.1088/0953-2048/25/12/124001

Project information

Project financing: Supported by the European Community under the Marie Curie IEF Action (Grant Agreement No. PIEF-GA-2009-235486-ScQSR)

Abstract in another language

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.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: superconductivity; confined systems; nanostructures; Cooper pairs
Institutions of the University: Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Theoretical Physics III > Chair Theoretical Physics III - Univ.-Prof. Dr. Martin Axt
Faculties
Faculties > Faculty of Mathematics, Physics und Computer Science
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Theoretical Physics III
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 530 Physics
Date Deposited: 02 Nov 2017 06:48
Last Modified: 02 Nov 2017 06:48
URI: https://eref.uni-bayreuth.de/id/eprint/40237