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Article: Persistent current in disordered Aharonov-Bohm rings with interacting electrons

TitlePersistent current in disordered Aharonov-Bohm rings with interacting electrons
Authors
KeywordsPhysics
Issue Date1996
PublisherAmerican Physical Society. The Journal's web site is located at http://prb.aps.org/
Citation
Physical Review B - Condensed Matter And Materials Physics, 1996, v. 54 n. 11, p. 8101-8106 How to Cite?
AbstractThe role of repulsive on-site and nearest-neighbor Coulomb interactions in disordered half-filled Aharanov-Bohm rings is studied by world-line quantum Monte Carlo simulations. The diverse dependence of the equilibrium persistent current on the couplings is found to relate systematically to the magnetic phase of the model: the maximum charge stiffness (or the persistent current) coexists with the phase-transition line between the dominant charge-density-wave state and the dominant spin-density-wave state. The stiffness vanishes with an increasing departure from the transition line. Thus in the disordered rings the Coulomb interactions can enhance the charge stiffness over the noninteracting limit in such a way as to drive the system toward the phase-transition regime.
Persistent Identifierhttp://hdl.handle.net/10722/43179
ISSN
2001 Impact Factor: 3.07
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorWang, Qen_HK
dc.contributor.authorWang, ZDen_HK
dc.contributor.authorZhu, JXen_HK
dc.date.accessioned2007-03-23T04:40:48Z-
dc.date.available2007-03-23T04:40:48Z-
dc.date.issued1996en_HK
dc.identifier.citationPhysical Review B - Condensed Matter And Materials Physics, 1996, v. 54 n. 11, p. 8101-8106en_HK
dc.identifier.issn0163-1829en_HK
dc.identifier.urihttp://hdl.handle.net/10722/43179-
dc.description.abstractThe role of repulsive on-site and nearest-neighbor Coulomb interactions in disordered half-filled Aharanov-Bohm rings is studied by world-line quantum Monte Carlo simulations. The diverse dependence of the equilibrium persistent current on the couplings is found to relate systematically to the magnetic phase of the model: the maximum charge stiffness (or the persistent current) coexists with the phase-transition line between the dominant charge-density-wave state and the dominant spin-density-wave state. The stiffness vanishes with an increasing departure from the transition line. Thus in the disordered rings the Coulomb interactions can enhance the charge stiffness over the noninteracting limit in such a way as to drive the system toward the phase-transition regime.en_HK
dc.format.extent131222 bytes-
dc.format.extent45056 bytes-
dc.format.mimetypeapplication/pdf-
dc.format.mimetypeapplication/msword-
dc.languageengen_HK
dc.publisherAmerican Physical Society. The Journal's web site is located at http://prb.aps.org/en_HK
dc.relation.ispartofPhysical Review B - Condensed Matter and Materials Physicsen_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.rightsPhysical Review B (Condensed Matter). Copyright © American Physical Society.en_HK
dc.subjectPhysicsen_HK
dc.titlePersistent current in disordered Aharonov-Bohm rings with interacting electronsen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0163-1829&volume=54&issue=11&spage=8101&epage=8106&date=1996&atitle=Persistent+current+in+disordered+Aharonov-Bohm+rings+with+interacting+electronsen_HK
dc.identifier.emailWang, ZD: zwang@hkucc.hku.hken_HK
dc.identifier.authorityWang, ZD=rp00802en_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.doi10.1103/PhysRevB.54.8101en_HK
dc.identifier.scopuseid_2-s2.0-0006256637en_HK
dc.identifier.hkuros21112-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0006256637&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume54en_HK
dc.identifier.issue11en_HK
dc.identifier.spage8101en_HK
dc.identifier.epage8106en_HK
dc.identifier.isiWOS:A1996VL14500079-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridWang, Q=7406916485en_HK
dc.identifier.scopusauthoridWang, ZD=14828459100en_HK
dc.identifier.scopusauthoridZhu, JX=7405688302en_HK
dc.identifier.citeulike7507019-

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