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题名: Correlation effects for semiconducting single-wall carbon nanotubes: A density matrix renormalization group study
作者: Ye, F ;  Wang, BS ;  Lou, JZ ;  Su, ZB
刊名: PHYSICAL REVIEW B
出版日期: 2005
卷号: 72, 期号:23, 页码:-
关键词: COULOMB INTERACTIONS ;  GAP
学科分类: Physics
通讯作者: Ye, F , Tsinghua Univ, Ctr Adv Study, Beijing 100084, Peoples R China.
部门归属: Tsinghua Univ, Ctr Adv Study, Beijing 100084, Peoples R China; Acad Sinica, State Key Lab Semicond Superlattice & Microstruct, Beijing 100083, Peoples R China; Acad Sinica, Inst Semicond, Beijing 100083, Peoples R China; Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China
英文摘要: In this paper we report the applicability of the density matrix renormalization group (DMRG) approach to the cylindrical single wall carbon nanotube (SWCN) for the purpose of its correlation effect. By applying the DMRG approach to the t+U+V model, with t and V being the hopping and Coulomb energies between the nearest neighboring sites, respectively, and U the on-site Coulomb energy, we calculate the phase diagram for the SWCN with chiral numbers (n(1)=3, n(2)=2), which reflects the competition between the correlation energy U and V. Within reasonable parameter ranges, we investigate possible correlated ground states, the lowest excitations, and the corresponding correlation functions in which the connection with the excitonic insulator is particularly addressed.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000234336000029
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/13712
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Ye, F,Wang, BS,Lou, JZ,et al. Correlation effects for semiconducting single-wall carbon nanotubes: A density matrix renormalization group study[J]. PHYSICAL REVIEW B,2005,72(23):-.
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