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Title
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Re-entrant pinning of Wigner molecules in a magnetic field due to a Coulomb impurity
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Author
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Abstract
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| 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. |
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Language
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English
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Source (journal)
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Europhysics letters / Société européenne de physique. - Les Ulis, 1986, currens
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Publication
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Les Ulis
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Les éditions de physique
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2004
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ISSN
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0295-5075
1286-4854
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DOI
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10.1209/EPL/I2003-10250-8
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Volume/pages
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66
:5
(2004)
, p. 701-707
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ISI
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000223064900014
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Full text (Publisher's DOI)
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Full text (open access)
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