Title
Superconducting nanowires : new type of BCS-BEC crossover driven by quantum-size effects Superconducting nanowires : new type of BCS-BEC crossover driven by quantum-size effects
Author
Faculty/Department
Faculty of Sciences. Chemistry
Faculty of Sciences. Physics
Publication type
conferenceObject
Publication
Dordrecht :Springer, [*]
Subject
Physics
Source (book)
Physical properties of nanosystems : proceedings of the Conference of the NATO-ARW on Physical Properties of Nanosystems, September 28-October 2, 2009, Yalta, Ukraine / Bonca, J. [edit.]; et al. [edit.]
ISBN - Hoofdstuk
978-94-007-0043-7
ISI
000289872900009
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
We show that a superconducting quantum nanowire undergoes a new type of BCS-BEC crossover each time when an electron subband approaches the Fermi surface. In this case the longitudinal Cooper-pair size drops by two-three orders of magnitude down to a few nanometers. This unconventional BCS-BEC crossover is driven by quantum-size effects rather than by tuning the fermion-fermion interaction.
E-info
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