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ITP OpenIR  > 理论物理所2016年知识产出  > 期刊论文
题名: Manipulating interface states in monolayer-bilayer graphene planar junctions
作者: Zhao, F ;  Xu, L ;  Zhang, J
刊名: JOURNAL OF PHYSICS-CONDENSED MATTER
出版日期: 2016
卷号: 28, 期号:18, 页码:185001
关键词: monolayer-bilayer graphene planar junction ;  quantum Hall effect ;  quantum spin Hall effect
学科分类: Physics
DOI: http://dx.doi.org/10.1088/0953-8984/28/18/185001
通讯作者: Zhang, J (reprint author), Xinjiang Univ, Sch Phys Sci & Technol, Urumqi 830046, Peoples R China. ;  Zhang, J (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
文章类型: Article
英文摘要: We 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.
类目[WOS]: Physics, Condensed Matter
关键词[WOS]: BERRYS PHASE ;  FIELD
收录类别: SCI
项目资助者: NSFC [11564038, 11547131, 11404276, 11265015] ;  Xinjiang University [BS130112]
语种: 英语
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/21652
Appears in Collections:理论物理所2016年知识产出_期刊论文

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Recommended Citation:
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.
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