Raman evidence for atomic correlation between the two constituent tubes in double-walled carbon nanotubes

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	Raman evidence for atomic correlation between the two constituent tubes in double-walled carbon nanotubes
	W. C. Ren; F. Li; P. H. Tan; H. M. Cheng
	2006
发表期刊	Physical Review B
ISSN	1098-0121
卷号	73 期号:11
摘要	Four well-resolved peaks with very narrow linewidths were found in the D-band and G'-band features of double-walled carbon nanotubes (DWNTs). This fact implies the occurrence of additional van Hove singularities (vHSs) in the joint density of states (JDOS) of DWNTs, which is consistent with theoretical calculations. According to their peak frequencies and theoretical analysis, the two outer peaks can be deduced to originate from a strong coupling between the two constituent tubes of commensurate DWNTs and the two inner peaks were curvature-related and assigned to originate from the two tubes with a weak coupling. This observation and elucidation constitute the first Raman evidence for atomic correlation and the resulting electronic structure change of the two constituent tubes in DWNTs. This result opens the possibility of predicting and modifying the electronic properties of DWNTs for their electronic applications.
部门归属	chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china. chinese acad sci, inst semicond, state key lab superlattices & microstruct, beijing 100083, peoples r china.;cheng, hm (reprint author), chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china;cheng@imr.ac.cn
关键词	Diameter Distribution D-band Scattering Spectroscopy Graphite Origin
URL	查看原文
WOS记录号	WOS:000236467300150
引用统计	被引频次：13[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/321006/34444
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	W. C. Ren,F. Li,P. H. Tan,et al. Raman evidence for atomic correlation between the two constituent tubes in double-walled carbon nanotubes[J]. Physical Review B,2006,73(11).
APA	W. C. Ren,F. Li,P. H. Tan,&H. M. Cheng.(2006).Raman evidence for atomic correlation between the two constituent tubes in double-walled carbon nanotubes.Physical Review B,73(11).
MLA	W. C. Ren,et al."Raman evidence for atomic correlation between the two constituent tubes in double-walled carbon nanotubes".Physical Review B 73.11(2006).