The Fermi Level Dependent Electronic Properties of the Smallest (2,2) Carbon Nanotube

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	The Fermi Level Dependent Electronic Properties of the Smallest (2,2) Carbon Nanotube
	L. C. Yin; R. Saito; M. S. Dresselhaus
	2010
发表期刊	Nano Letters
ISSN	1530-6984
卷号	10 期号:9 页码:3290-3296
摘要	A metal semiconductor transition in the smallest (2,2) single-wall carbon nanotube (SWNT) is predicted theoretically as a function of gate voltage. By hole-doping (or heavy electron-doping), the energy gap of a neutral (2,2) SWNT vanishes with structural change, and the (2,2) SWNT becomes metallic. The (2,2) tube assumes a doubly degenerate ground state around the charge neutral condition with an energy barrier, while this tube has only one nondegenerate metallic ground state over an energy window of -0.12 to +0.40 eV. Because of a high density of states at the Fermi energy for hole-doped (2,2) SWNTs, a possible superconducting transition is expected.
部门归属	[yin, li-chang; saito, riichiro] tohoku univ, dept phys, sendai, miyagi 9808578, japan. [yin, li-chang] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. [dresselhaus, mildred s.] mit, dept elect engn & comp sci, cambridge, ma 02139 usa. [dresselhaus, mildred s.] mit, dept phys, cambridge, ma 02139 usa.;yin, lc (reprint author), tohoku univ, dept phys, sendai, miyagi 9808578, japan;lcyin@imr.ac.cn
关键词	(2 2) Carbon Nanotube Electrochemical Doping Metal-semiconductor Transition Superconductivity Fermi Level Brillouin-zone Integrations Materials Science Superconductivity Angstrom Semiconductor Conductivity Fullerenes Energetics Insulator Diameter
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WOS记录号	WOS:000281498200012
引用统计	被引频次：10[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/31654
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	L. C. Yin,R. Saito,M. S. Dresselhaus. The Fermi Level Dependent Electronic Properties of the Smallest (2,2) Carbon Nanotube[J]. Nano Letters,2010,10(9):3290-3296.
APA	L. C. Yin,R. Saito,&M. S. Dresselhaus.(2010).The Fermi Level Dependent Electronic Properties of the Smallest (2,2) Carbon Nanotube.Nano Letters,10(9),3290-3296.
MLA	L. C. Yin,et al."The Fermi Level Dependent Electronic Properties of the Smallest (2,2) Carbon Nanotube".Nano Letters 10.9(2010):3290-3296.