Dynamical mass generation of composite Dirac fermions and fractional quantum Hall effects near charge neutrality in graphene
文献类型：期刊论文
| 作者 | Yu, Y
|
| 刊名 | JOURNAL OF PHYSICS-CONDENSED MATTER
 |
| 出版日期 | 2013 |
| 卷号 | 25期号:30页码:305601 |
| 关键词 | LANDAU-LEVEL SUPERFLUID BREAKING SYSTEMS STATES FIELD |
| ISSN号 | 0953-8984 |
| 通讯作者 | Cai, F (reprint author), Boston Coll, Dept Phys, Chestnut Hill, MA 02467 USA. |
| 英文摘要 | 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. |
| 学科主题 | Physics |
| 收录类别 | SCI |
| 资助信息 | DOE [DE-FG02-99ER45747]; NNSF of China; 973 program of MOST of China |
| 原文出处 | http://dx.doi.org/10.1088/0953-8984/25/30/305601 |
| 语种 | 英语 |
| WOS记录号 | WOS:000321752800009 |
| 公开日期 | 2014-04-25 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/15312]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 推荐引用方式 GB/T 7714 | Yu, Y. 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 | Yu, Y.(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 | Yu, Y."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. |
入库方式： OAI收割
来源：理论物理研究所
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