Maximum density hole droplets of an antidot in strong magnetic fields
DC Field | Value | Language |
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dc.contributor.author | Hwang, NY | - |
dc.contributor.author | Yang, SRE | - |
dc.contributor.author | Sim, HS | - |
dc.contributor.author | Yi, HM | - |
dc.date.available | 2018-05-10T18:03:56Z | - |
dc.date.created | 2018-04-17 | - |
dc.date.issued | 2004-08 | - |
dc.identifier.issn | 2469-9950 | - |
dc.identifier.uri | http://scholarworks.bwise.kr/ssu/handle/2018.sw.ssu/19974 | - |
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.publisher | AMER PHYSICAL SOC | - |
dc.relation.isPartOf | PHYSICAL REVIEW B | - |
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.doi | 10.1103/PhysRevB.70.085322 | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | PHYSICAL REVIEW B, v.70, no.8 | - |
dc.description.journalClass | 1 | - |
dc.identifier.wosid | 000223716700074 | - |
dc.identifier.scopusid | 2-s2.0-19544375750 | - |
dc.citation.number | 8 | - |
dc.citation.title | PHYSICAL REVIEW B | - |
dc.citation.volume | 70 | - |
dc.contributor.affiliatedAuthor | Yi, HM | - |
dc.type.docType | Article | - |
dc.description.oadoiVersion | submitted | - |
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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