DC Field | Value | Language |
---|---|---|
dc.contributor.author | Hwang, NY | ko |
dc.contributor.author | Yang, SRE | ko |
dc.contributor.author | Sim, Heung-Sun | ko |
dc.contributor.author | Yi, HM | ko |
dc.date.accessioned | 2010-11-25T06:34:36Z | - |
dc.date.available | 2010-11-25T06:34:36Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2004-08 | - |
dc.identifier.citation | PHYSICAL REVIEW B, v.70, pp.575 - 585 | - |
dc.identifier.issn | 1098-0121 | - |
dc.identifier.uri | http://hdl.handle.net/10203/20397 | - |
dc.description.abstract | We investigate a quantum antidot in the integer quantum Hall regime (the filling factor is two) by using a Hartree-Fock approach and by transforming the electron antidot into a system which confines holes via an electron-hole transformation. We find that its ground state is the maximum density droplet of holes in certain parameter ranges. The competition between electron-electron interactions and the confinement potential governs the properties of the hole droplet such as its spin configuration. The ground-state transitions between the droplets with different spin configurations occur as magnetic field varies. For a bell-shape antidot containing about 300 holes, the features of the transitions are in good agreement with the predictions of a recently proposed capacitive interaction model for antidots as well as recent experimental observations. We show this agreement by obtaining the parameters of the capacitive interaction model from the Hartree-Fock results. An inverse parabolic antidot is also studied. Its ground-state transitions, however, display different magnetic-field dependence from that of a bell-shaped antidot. Our study demonstrates that the shape of antidot potential affects its physical properties significantly. | - |
dc.description.sponsorship | The authors thank M. Kataoka for useful discussions. We were supported by QSRC at Dongguk University (SREY and HSS), special grant from Korea University (SREY), and SKORE-A (HY). | en |
dc.language | English | - |
dc.language.iso | en_US | en |
dc.publisher | AMER PHYSICAL SOC | - |
dc.subject | QUANTUM HALL REGIME | - |
dc.subject | AHARONOV-BOHM OSCILLATIONS | - |
dc.subject | DOTS | - |
dc.subject | STATES | - |
dc.subject | SKYRMIONS | - |
dc.subject | CHARGE | - |
dc.subject | EDGES | - |
dc.title | Maximum density hole droplets of an antidot in strong magnetic fields | - |
dc.type | Article | - |
dc.identifier.wosid | 000223716700074 | - |
dc.identifier.scopusid | 2-s2.0-19544375750 | - |
dc.type.rims | ART | - |
dc.citation.volume | 70 | - |
dc.citation.beginningpage | 575 | - |
dc.citation.endingpage | 585 | - |
dc.citation.publicationname | PHYSICAL REVIEW B | - |
dc.identifier.doi | 10.1103/PhysRevB.70.085322 | - |
dc.embargo.liftdate | 9999-12-31 | - |
dc.embargo.terms | 9999-12-31 | - |
dc.contributor.localauthor | Sim, Heung-Sun | - |
dc.contributor.nonIdAuthor | Hwang, NY | - |
dc.contributor.nonIdAuthor | Yang, SRE | - |
dc.contributor.nonIdAuthor | Yi, HM | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | QUANTUM HALL REGIME | - |
dc.subject.keywordPlus | AHARONOV-BOHM OSCILLATIONS | - |
dc.subject.keywordPlus | DOTS | - |
dc.subject.keywordPlus | STATES | - |
dc.subject.keywordPlus | SKYRMIONS | - |
dc.subject.keywordPlus | CHARGE | - |
dc.subject.keywordPlus | EDGES | - |
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