A Waveguide-Like Effect Observed in Multiwalled Carbon Nanotube Bundles

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	A Waveguide-Like Effect Observed in Multiwalled Carbon Nanotube Bundles
	Xu, SY ; Yang, Y ; Pei, DF ; Zhao, X ; Wang, YX ; Sun, WQ ; Ma, B ; Li, Y ; Xie, SS ; Peng, LM
刊名	ADVANCED FUNCTIONAL MATERIALS
	2010
卷号	20 期号:14 页码:2263
关键词	FIELD-EFFECT TRANSISTORS ELECTRICAL-PROPERTIES LOGIC-CIRCUITS INTERCONNECTS ELECTROMIGRATION FABRICATION FREQUENCIES MICROWAVE ROUTE MODEL
ISSN号	1616-301X
通讯作者	Xu, SY: Peking Univ, Key Lab Phys, Beijing 100871, Peoples R China.
中文摘要	In this paper we give the full microscopic derivation of the model Hamiltonian for the three-dimensional topological insulators in the Bi(2)Se(3) family of materials (Bi(2)Se(3), Bi(2)Te(3) and Sb(2)Te(3)). We first give a physical picture to understand the electronic structure by analyzing atomic orbitals and applying symmetry principles. Subsequently, we give the full microscopic derivation of the model Hamiltonian introduced by Zhang et al. [Nat. Phys. 5, 438 (2009)] based both on symmetry principles and the k.p perturbation theory. Two different types of k(3) terms, which break the in-plane full rotation symmetry down to threefold rotation symmetry, are taken into account. An effective Hamiltonian is derived for the topological surface states. Both bulk and surface models are investigated in the presence of an external magnetic field, and the associated Landau level structure is presented. For a more quantitative fitting to the first principle calculations, we also present a model Hamiltonian including eight energy bands.
收录类别	SCI
资助信息	NSF China [10774002]; MOST China [2006CB932401]
语种	英语
公开日期	2013-09-17
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/33347]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Xu, SY,Yang, Y,Pei, DF,et al. A Waveguide-Like Effect Observed in Multiwalled Carbon Nanotube Bundles[J]. ADVANCED FUNCTIONAL MATERIALS,2010,20(14):2263.
APA	Xu, SY.,Yang, Y.,Pei, DF.,Zhao, X.,Wang, YX.,...&Peng, LM.(2010).A Waveguide-Like Effect Observed in Multiwalled Carbon Nanotube Bundles.ADVANCED FUNCTIONAL MATERIALS,20(14),2263.
MLA	Xu, SY,et al."A Waveguide-Like Effect Observed in Multiwalled Carbon Nanotube Bundles".ADVANCED FUNCTIONAL MATERIALS 20.14(2010):2263.