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Correlation effects for semiconducting single-wall carbon nanotubes: A density matrix renormalization group study
Ye, F; Wang, BS; Lou, JZ; Su, ZB; Ye, F , Tsinghua Univ, Ctr Adv Study, Beijing 100084, Peoples R China.
2005
发表期刊PHYSICAL REVIEW B
ISSN1098-0121
卷号72期号:23页码:-
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.
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
关键词Coulomb Interactions Gap
学科领域Physics
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收录类别SCI
WOS记录号WOS:000234336000029
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被引频次:3[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/13712
专题理论物理所SCI论文
通讯作者Ye, F , Tsinghua Univ, Ctr Adv Study, Beijing 100084, Peoples R China.
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GB/T 7714
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):-.
APA Ye, F,Wang, BS,Lou, JZ,Su, ZB,&Ye, F , Tsinghua Univ, Ctr Adv Study, Beijing 100084, Peoples R China..(2005).Correlation effects for semiconducting single-wall carbon nanotubes: A density matrix renormalization group study.PHYSICAL REVIEW B,72(23),-.
MLA Ye, F,et al."Correlation effects for semiconducting single-wall carbon nanotubes: A density matrix renormalization group study".PHYSICAL REVIEW B 72.23(2005):-.
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