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강상관계물질연구단
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Boundary-obstructed topological superconductor in buckled honeycomb lattice under perpendicular electric field

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dc.contributor.authorRasoul Ghadimi-
dc.contributor.authorSeung Hun Lee-
dc.contributor.authorBohm-Jung Yang-
dc.date.accessioned2023-08-08T22:01:49Z-
dc.date.available2023-08-08T22:01:49Z-
dc.date.created2023-07-24-
dc.date.issued2023-06-
dc.identifier.issn2469-9950-
dc.identifier.urihttps://pr.ibs.re.kr/handle/8788114/13726-
dc.description.abstractIn this work, we show that a buckled honeycomb lattice can host a boundary-obstructed topological superconductor (BOTS) in the presence of f-wave spin-triplet pairing (fSTP). The underlying buckled structure allows for the manipulation of both chemical potential and sublattice potential using a double gate setup. Although a finite sublattice potential can stabilize the fSTP with a possible higher-order band topology, because it also breaks the relevant symmetry, the stability of the corner modes is not guaranteed. Here we show that the fSTP on the honeycomb lattice gives a BOTS under nonzero sublattice potential, thus the corner modes can survive as long as the boundary is gapped. Also, by examining the large sublattice potential limit where the honeycomb lattice can be decomposed into two triangular lattices, we show that the boundary modes in the normal state are the quintessential ingredient leading to the BOTS. Thus the effective boundary Hamiltonian becomes nothing but the Hamiltonian for Kitaev chains, which eventually gives the corner modes of the BOTS. © 2023 American Physical Society.-
dc.language영어-
dc.publisherAmerican Physical Society-
dc.titleBoundary-obstructed topological superconductor in buckled honeycomb lattice under perpendicular electric field-
dc.typeArticle-
dc.type.rimsART-
dc.identifier.wosid001078180500002-
dc.identifier.scopusid2-s2.0-85163309341-
dc.identifier.rimsid81251-
dc.contributor.affiliatedAuthorRasoul Ghadimi-
dc.contributor.affiliatedAuthorSeung Hun Lee-
dc.contributor.affiliatedAuthorBohm-Jung Yang-
dc.identifier.doi10.1103/PhysRevB.107.224511-
dc.identifier.bibliographicCitationPhysical Review B, v.107, no.22-
dc.relation.isPartOfPhysical Review B-
dc.citation.titlePhysical Review B-
dc.citation.volume107-
dc.citation.number22-
dc.type.docTypeArticle-
dc.description.journalClass1-
dc.description.journalClass1-
dc.description.isOpenAccessN-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
dc.relation.journalResearchAreaMaterials Science-
dc.relation.journalResearchAreaPhysics-
dc.relation.journalWebOfScienceCategoryMaterials Science, Multidisciplinary-
dc.relation.journalWebOfScienceCategoryPhysics, Applied-
dc.relation.journalWebOfScienceCategoryPhysics, Condensed Matter-
Appears in Collections:
Center for Correlated Electron Systems(강상관계 물질 연구단) > 1. Journal Papers (저널논문)
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