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Cai, F; Yu, Y; Wang, ZQ; Cai, F (reprint author), Boston Coll, Dept Phys, Chestnut Hill, MA 02467 USA.
Dynamical mass generation of composite Dirac fermions and fractional quantum Hall effects near charge neutrality in graphene
Source PublicationJOURNAL OF PHYSICS-CONDENSED MATTER
Language英语
KeywordLandau-level Superfluid Breaking Systems States Field
AbstractWe develop a composite Dirac fermion theory for the fractional quantum Hall effects (QHE) near charge neutrality in graphene. We show that the interactions between the composite Dirac fermions lead to a dynamical mass generation through exciton condensation. The four-fold spin-valley degeneracy is fully lifted due to the mass generation and exchange effects such that the odd-denominator fractional QHE observed in the vicinity of charge neutrality can be understood in terms of the integer QHE of composite Dirac fermions. At a filling factor nu = 1/2, we show that the massive composite Dirac fermion liquid is unstable against chiral p-wave pairing for weak Coulomb interactions and the ground state is a paired non-Abelian quantum Hall state described by the Moore-Read Pfaffian in the long wavelength limit.
2013
ISSN0953-8984
Volume25Issue:30Pages:305601
Subject AreaPhysics
Indexed BySCI
Funding OrganizationDOE [DE-FG02-99ER45747]; NNSF of China; 973 program of MOST of China ; DOE [DE-FG02-99ER45747]; NNSF of China; 973 program of MOST of China ; DOE [DE-FG02-99ER45747]; NNSF of China; 973 program of MOST of China ; DOE [DE-FG02-99ER45747]; NNSF of China; 973 program of MOST of China
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/15312
Collection理论物理所科研产出_SCI论文
Corresponding AuthorCai, F (reprint author), Boston Coll, Dept Phys, Chestnut Hill, MA 02467 USA.
Recommended Citation
GB/T 7714
Cai, F,Yu, Y,Wang, ZQ,et al. Dynamical mass generation of composite Dirac fermions and fractional quantum Hall effects near charge neutrality in graphene[J]. JOURNAL OF PHYSICS-CONDENSED MATTER,2013,25(30):305601.
APA Cai, F,Yu, Y,Wang, ZQ,&Cai, F .(2013).Dynamical mass generation of composite Dirac fermions and fractional quantum Hall effects near charge neutrality in graphene.JOURNAL OF PHYSICS-CONDENSED MATTER,25(30),305601.
MLA Cai, F,et al."Dynamical mass generation of composite Dirac fermions and fractional quantum Hall effects near charge neutrality in graphene".JOURNAL OF PHYSICS-CONDENSED MATTER 25.30(2013):305601.
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