ITP OpenIR  > SCI期刊论文
Xu, L; Zhou, Y; Zhang, J; Xu, L (reprint author), Xinjiang Univ, Sch Phys Sci & Technol, Urumqi 830046, Peoples R China.
From helical state to chiral state in ferromagnetic bilayer graphene
Source PublicationSOLID STATE COMMUNICATIONS
Language英语
KeywordBilayer Graphene Electronic Band Structure Quantum Hall Effect
AbstractWe 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.
2015
Volume212Issue:0Pages:41-45
Subject AreaPhysics
DOIhttp://dx.doi.org/10.1016/j.ssc.2015.04.006
Indexed BySCI
Funding OrganizationNSFC [11404276, 11265015, 11347207] ; NSFC [11404276, 11265015, 11347207] ; NSFC [11404276, 11265015, 11347207] ; NSFC [11404276, 11265015, 11347207] ; Xinjiang University [B5130112] ; Xinjiang University [B5130112] ; Xinjiang University [B5130112] ; Xinjiang University [B5130112] ; NSF of the Xinjiang uygur [2014211A003] ; NSF of the Xinjiang uygur [2014211A003] ; NSF of the Xinjiang uygur [2014211A003] ; NSF of the Xinjiang uygur [2014211A003]
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/20988
CollectionSCI期刊论文
Corresponding AuthorXu, L (reprint author), Xinjiang Univ, Sch Phys Sci & Technol, Urumqi 830046, Peoples R China.
Recommended Citation
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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