ITP OpenIR  > 2015年知识产出
From helical state to chiral state in ferromagnetic bilayer graphene
Xu, L; Zhou, Y; Zhang, J; Xu, L (reprint author), Xinjiang Univ, Sch Phys Sci & Technol, Urumqi 830046, Peoples R China.
2015
发表期刊SOLID STATE COMMUNICATIONS
卷号212期号:0页码:41-45
文章类型Article
摘要We explore topological phases in biased ferromagnetic bilayer graphene, formed by bilayer graphene subjected to an external ferromagnetic exchange field, under a magnetic field. The most likely way to obtain a variety of distinct broken symmetry topological phases is proposed by means of ferromagnetic exchange field. Both spin-filtered quantum Hall and quantum spin Hall (QSH) phases are found. Edge modes in this QSH phase carry charge, spin and valley currents. When both time reversal and inversion symmetries are broken, the QSH phase remains robust against weak disorder. Moreover, topological phase transition from helical phase to chiral phase can be driven by simply tuning bias voltage or Fermi energy. A few possible experimental realizations are also discussed. (C) 2015 Published by Elsevier Ltd.
关键词Bilayer Graphene Electronic Band Structure Quantum Hall Effect
学科领域Physics
资助者NSFC [11404276, 11265015, 11347207] ; NSFC [11404276, 11265015, 11347207] ; Xinjiang University [B5130112] ; Xinjiang University [B5130112] ; NSF of the Xinjiang uygur [2014211A003] ; NSF of the Xinjiang uygur [2014211A003] ; NSFC [11404276, 11265015, 11347207] ; NSFC [11404276, 11265015, 11347207] ; Xinjiang University [B5130112] ; Xinjiang University [B5130112] ; NSF of the Xinjiang uygur [2014211A003] ; NSF of the Xinjiang uygur [2014211A003]
DOIhttp://dx.doi.org/10.1016/j.ssc.2015.04.006
关键词[WOS]ELECTRONIC-PROPERTIES ; DIRAC FERMIONS ; BERRYS PHASE ; LATTICE ; FIELD
收录类别SCI
语种英语
资助者NSFC [11404276, 11265015, 11347207] ; NSFC [11404276, 11265015, 11347207] ; Xinjiang University [B5130112] ; Xinjiang University [B5130112] ; NSF of the Xinjiang uygur [2014211A003] ; NSF of the Xinjiang uygur [2014211A003] ; NSFC [11404276, 11265015, 11347207] ; NSFC [11404276, 11265015, 11347207] ; Xinjiang University [B5130112] ; Xinjiang University [B5130112] ; NSF of the Xinjiang uygur [2014211A003] ; NSF of the Xinjiang uygur [2014211A003]
WOS类目Physics, Condensed Matter
引用统计
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/20988
专题2015年知识产出
通讯作者Xu, L (reprint author), Xinjiang Univ, Sch Phys Sci & Technol, Urumqi 830046, Peoples R China.
推荐引用方式
GB/T 7714
Xu, L,Zhou, Y,Zhang, J,et al. From helical state to chiral state in ferromagnetic bilayer graphene[J]. SOLID STATE COMMUNICATIONS,2015,212(0):41-45.
APA Xu, L,Zhou, Y,Zhang, J,&Xu, L .(2015).From helical state to chiral state in ferromagnetic bilayer graphene.SOLID STATE COMMUNICATIONS,212(0),41-45.
MLA Xu, L,et al."From helical state to chiral state in ferromagnetic bilayer graphene".SOLID STATE COMMUNICATIONS 212.0(2015):41-45.
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