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Zhao, F; Xu, L; Zhang, J1
Manipulating interface states in monolayer-bilayer graphene planar junctions
Source PublicationJOURNAL OF PHYSICS-CONDENSED MATTER
Language英语
Keywordmonolayer-bilayer graphene planar junction BERRYS PHASE quantum Hall effect FIELD quantum spin Hall effect
AbstractWe report on transport properties of monolayer-bilayer graphene planar junctions in a magnetic field. Due to its unique geometry, the edge and interface states can be independently manipulated by either interlayer potential or Zeeman field, and the conductance exhibits interesting quantized behaviors. In the hybrid graphene junction, the quantum Hall (QH) conductance is no longer antisymmetric with respect to the charge neutrality point. When the Zeeman field is considered, a quantum spin Hall (QSH) phase is found in the monolayer region while the weak-QSH phase stays in the bilayer region. In the presence of both interlayer potential and Zeeman field, the bilayer region hosts a QSH phase, whereas the monolayer region is still in a QH phase, leading to a spin-polarized current in the interface. In particular, the QSH phase remains robust against the disorder.
2016
Volume28Issue:18Pages:185001
Subject AreaPhysics
DOIhttp://dx.doi.org/10.1088/0953-8984/28/18/185001
Indexed BySCI
Funding OrganizationNSFC [11564038, 11547131, 11404276, 11265015] ; Xinjiang University [BS130112]
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/23212
Collection理论物理所科研产出_SCI论文
Affiliation1.Xinjiang Univ, Sch Phys Sci & Technol, Urumqi 830046, Peoples R China
2.Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Zhao, F,Xu, L,Zhang, J. Manipulating interface states in monolayer-bilayer graphene planar junctions[J]. JOURNAL OF PHYSICS-CONDENSED MATTER,2016,28(18):185001.
APA Zhao, F,Xu, L,&Zhang, J.(2016).Manipulating interface states in monolayer-bilayer graphene planar junctions.JOURNAL OF PHYSICS-CONDENSED MATTER,28(18),185001.
MLA Zhao, F,et al."Manipulating interface states in monolayer-bilayer graphene planar junctions".JOURNAL OF PHYSICS-CONDENSED MATTER 28.18(2016):185001.
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