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Article: Effect of a charged impurity on the fractional quantum Hall effect: Exact numerical treatment of finite systems

TitleEffect of a charged impurity on the fractional quantum Hall effect: Exact numerical treatment of finite systems
Authors
Zhang, FCVulovic, VZGuo, YDas Sarma, S
Issue Date1985
PublisherAmerican Physical Society. The Journal's web site is located at http://prb.aps.org/
Citation
Physical Review B (Condensed Matter), 1985, v. 32 n. 10, p. 6920-6923 How to Cite?
DOI: http://dx.doi.org/10.1103/PhysRevB.32.6920
AbstractWe investigate the role of a single charged impurity on the fractional quantum Hall effect phenomenon by studying finite systems in spherical, toroidal, and disk geometries. Our qualitative results are independent of the geometry. We study the screening behavior systematically and find that screening charge accumulates at the impurity. The screening charge density shows an interesting oscillation with a characteristic scale of the magnetic length. We also find that the excitation gap is reduced significantly in the presence of the impurity. © 1985 The American Physical Society.
Persistent Identifierhttp://hdl.handle.net/10722/174627
ISSN
0163-1829
ISI Accession Number ID
WOS:A1985ATX8800100

 

DC FieldValueLanguage
dc.contributor.authorZhang, FCen_US
dc.contributor.authorVulovic, VZen_US
dc.contributor.authorGuo, Yen_US
dc.contributor.authorDas Sarma, Sen_US
dc.date.accessioned2012-11-26T08:46:35Z-
dc.date.available2012-11-26T08:46:35Z-
dc.date.issued1985en_US
dc.identifier.citationPhysical Review B (Condensed Matter), 1985, v. 32 n. 10, p. 6920-6923-
dc.identifier.issn0163-1829en_US
dc.identifier.urihttp://hdl.handle.net/10722/174627-
dc.description.abstractWe investigate the role of a single charged impurity on the fractional quantum Hall effect phenomenon by studying finite systems in spherical, toroidal, and disk geometries. Our qualitative results are independent of the geometry. We study the screening behavior systematically and find that screening charge accumulates at the impurity. The screening charge density shows an interesting oscillation with a characteristic scale of the magnetic length. We also find that the excitation gap is reduced significantly in the presence of the impurity. © 1985 The American Physical Society.en_US
dc.languageengen_US
dc.publisherAmerican Physical Society. The Journal's web site is located at http://prb.aps.org/en_US
dc.relation.ispartofPhysical Review B (Condensed Matter)-
dc.titleEffect of a charged impurity on the fractional quantum Hall effect: Exact numerical treatment of finite systemsen_US
dc.typeArticleen_US
dc.identifier.emailZhang, FC: fuchun@hkucc.hku.hken_US
dc.identifier.authorityZhang, FC=rp00840en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1103/PhysRevB.32.6920en_US
dc.identifier.scopuseid_2-s2.0-0001011774en_US
dc.identifier.volume32en_US
dc.identifier.issue10en_US
dc.identifier.spage6920en_US
dc.identifier.epage6923en_US
dc.identifier.isiWOS:A1985ATX8800100-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridZhang, FC=14012468800en_US
dc.identifier.scopusauthoridVulovic, VZ=22973350700en_US
dc.identifier.scopusauthoridGuo, Y=7406309950en_US
dc.identifier.scopusauthoridDas Sarma, S=35459638700en_US
dc.identifier.issnl0163-1829-

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