Title
Re-entrant pinning of Wigner molecules in a magnetic field due to a Coulomb impurity Re-entrant pinning of Wigner molecules in a magnetic field due to a Coulomb impurity
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
Paris ,
Subject
Physics
Source (journal)
Europhysics letters. - Paris
Volume/pages
66(2004) :5 , p. 701-707
ISSN
0295-5075
ISI
000223064900014
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
Pinning of magnetic-field-induced Wigner molecules (WMs) confined in parabolic two-dimensional quantum dots by a charged defect is studied by an exact diagonalization approach. We found a re-entrant pinning of the WMs as a function of the magnetic field, a magnetic-field-induced re-orientation of the WMs and a qualitatively different pinning behaviour in the presence of a positive and negative Coulomb impurity.
Full text (open access)
https://repository.uantwerpen.be/docman/irua/8ce908/5836.pdf
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