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mirzakhani,mohammad
복잡계이론물리연구단
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Electronic Mach-Zehnder interference in a bipolar hybrid monolayer-bilayer graphene junction

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dc.contributor.authorM. Mirzakhani-
dc.contributor.authorMyoung, N.-
dc.contributor.authorPeeters, F.M.-
dc.contributor.authorH.C. Park-
dc.date.accessioned2023-01-26T02:20:13Z-
dc.date.available2023-01-26T02:20:13Z-
dc.date.created2022-10-29-
dc.date.issued2023-01-
dc.identifier.issn0008-6223-
dc.identifier.urihttps://pr.ibs.re.kr/handle/8788114/12462-
dc.description.abstract© 2022 Elsevier LtdGraphene matter in a strong magnetic field, realizing one-dimensional quantum Hall channels, provides a unique platform for studying electron interference. Here, using the Landauer-Büttiker formalism along with the tight-binding model, we investigate the quantum Hall (QH) effects in unipolar and bipolar monolayer-bilayer graphene (MLG-BLG) junctions. We find that a Hall bar made of an armchair MLG-BLG junction in the bipolar regime results in valley-polarized edgechannel interferences and can operate a fully tunable Mach-Zehnder (MZ) interferometer device. Investigation of the bar-width and magnetic-field dependence of the conductance oscillations shows that the MZ interference in such structures can be drastically affected by the type of (zigzag) edge termination of the second layer in the BLG region [composed of vertical dimer or non-dimer atoms]. Our findings reveal that both interfaces exhibit a double set of Aharonov-Bohm interferences, with the one between two oppositely valley-polarized edge channels dominating and causing a large amplitude conductance oscillation ranging from 0 to 2e2/h. We explain and analyze our findings by analytically solving the Dirac-Weyl equation for a gated semi-infinite MLG-BLG junction.-
dc.language영어-
dc.publisherPergamon Press Ltd.-
dc.titleElectronic Mach-Zehnder interference in a bipolar hybrid monolayer-bilayer graphene junction-
dc.typeArticle-
dc.type.rimsART-
dc.identifier.wosid000868911500004-
dc.identifier.scopusid2-s2.0-85139224427-
dc.identifier.rimsid79009-
dc.contributor.affiliatedAuthorM. Mirzakhani-
dc.contributor.affiliatedAuthorH.C. Park-
dc.identifier.doi10.1016/j.carbon.2022.09.058-
dc.identifier.bibliographicCitationCarbon, v.201, pp.734 - 744-
dc.relation.isPartOfCarbon-
dc.citation.titleCarbon-
dc.citation.volume201-
dc.citation.startPage734-
dc.citation.endPage744-
dc.description.journalClass1-
dc.description.journalClass1-
dc.description.isOpenAccessY-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
dc.relation.journalWebOfScienceCategoryChemistry, Physical-
dc.relation.journalWebOfScienceCategoryMaterials Science, Multidisciplinary-
dc.subject.keywordAuthorHall conductance-
dc.subject.keywordAuthorHybrid graphene nanoribbons-
dc.subject.keywordAuthorMach-zehnder interference-
Appears in Collections:
Center for Theoretical Physics of Complex Systems(복잡계 이론물리 연구단) > 1. Journal Papers (저널논문)
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