Knowledge Management System of Institute of Theoretical Physics, CAS
Cai, F; Yu, Y ; Wang, ZQ; Cai, F (reprint author), Boston Coll, Dept Phys, Chestnut Hill, MA 02467 USA.
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| Dynamical mass generation of composite Dirac fermions and fractional quantum Hall effects near charge neutrality in graphene | |
| Source Publication | JOURNAL OF PHYSICS-CONDENSED MATTER
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| Language | 英语 |
| Keyword | Landau-level Superfluid Breaking Systems States Field |
| Abstract | We 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 | |
| ISSN | 0953-8984 |
| Volume | 25Issue:30Pages:305601 |
| Subject Area | Physics |
| Indexed By | SCI |
| Funding Organization | 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 ; DOE [DE-FG02-99ER45747]; NNSF of China; 973 program of MOST of China |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.itp.ac.cn/handle/311006/15312 |
| Collection | SCI期刊论文 |
| Corresponding Author | Cai, 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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| Dynamical mass gener（359KB） | 开放获取 | License | Application Full Text | |||
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