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Park, Hee Chul
복잡계 이론물리 연구단
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Electronic states of graphene quantum dots induced by nanobubbles

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dc.contributor.authorHee Chul Park-
dc.contributor.authorSon, Minsol-
dc.contributor.authorLee, Seung Joo-
dc.contributor.authorMyoung, Nojoon-
dc.date.accessioned2021-07-09T04:30:00Z-
dc.date.accessioned2021-07-09T04:30:00Z-
dc.date.available2021-07-09T04:30:00Z-
dc.date.available2021-07-09T04:30:00Z-
dc.date.created2021-07-07-
dc.date.issued2021-06-
dc.identifier.issn0374-4884-
dc.identifier.urihttps://pr.ibs.re.kr/handle/8788114/9889-
dc.description.abstract© 2021, The Korean Physical Society.We analyze the effects of the strain-induced pseudo-magnetic fields (PMFs) originating from nanobubbles (NBs) to examine the possibility for a graphene quantum dot (QD) created by strain engineering. We study the electronic structures and quantum transport properties of graphene subjected to an NB, and report that the presence of PMFs facilitates a strong confinement of Dirac fermions. A circular geometry of the NB locally establishes the characteristic PMFs with C3 symmetry, resulting in threefold localized states according to the given symmetry. We demonstrate the formation of a graphene QD induced by the NB via the conductance resonances calculated through the NB between opposite quantum Hall edge channels. Analyzing the scattering wavefunctions for the resonances, we confirm the existence of ground and excited states in the graphene QD. In addition, we show a possible valley-polarization in the graphene QD, as a consequence of quantum interference between symmetric and anti-symmetric valley-coupled modes.-
dc.description.uri1-
dc.language영어-
dc.publisherKorean Physical Society-
dc.titleElectronic states of graphene quantum dots induced by nanobubbles-
dc.typeArticle-
dc.type.rimsART-
dc.identifier.wosid000652086400005-
dc.identifier.scopusid2-s2.0-85106327858-
dc.identifier.rimsid75987-
dc.contributor.affiliatedAuthorHee Chul Park-
dc.identifier.doi10.1007/s40042-021-00196-x-
dc.identifier.bibliographicCitationJournal of the Korean Physical Society, v.78, no.12, pp.1208 - 1214-
dc.citation.titleJournal of the Korean Physical Society-
dc.citation.volume78-
dc.citation.number12-
dc.citation.startPage1208-
dc.citation.endPage1214-
dc.description.journalClass1-
dc.description.isOpenAccessN-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
dc.description.journalRegisteredClasskci-
dc.relation.journalWebOfScienceCategoryPhysics, Multidisciplinary-
dc.subject.keywordPlusSUSPENDED GRAPHENE-
dc.subject.keywordPlusSTRAIN-
dc.subject.keywordPlusMONOLAYER-
dc.subject.keywordPlusFIELD-
dc.subject.keywordAuthorGraphene-
dc.subject.keywordAuthorNanobubble-
dc.subject.keywordAuthorQuantum dot-
dc.subject.keywordAuthorStrain-
Appears in Collections:
Center for Theoretical Physics of Complex Systems(복잡계 이론물리 연구단) > 1. Journal Papers (저널논문)
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