Carbon nanotube-clamped metal atomic chain

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	Carbon nanotube-clamped metal atomic chain
	D. M. Tang; L. C. Yin; F. Li; C. Liu; W. J. Yu; P. X. Hou; B. Wu; Y. H. Lee; X. L. Ma; H. M. Cheng
	2010
发表期刊	Proceedings of the National Academy of Sciences of the United States of America
ISSN	0027-8424
卷号	107 期号:20 页码:9055-9059
摘要	Metal atomic chain (MAC) is an ultimate one-dimensional structure with unique physical properties, such as quantized conductance, colossal magnetic anisotropy, and quantized magnetoresistance. Therefore, MACs show great potential as possible components of nanoscale electronic and spintronic devices. However, MACs are usually suspended between two macroscale metallic electrodes; hence obvious technical barriers exist in the interconnection and integration of MACs. Here we report a carbon nanotube (CNT)-clamped MAC, where CNTs play the roles of both nanoconnector and electrodes. This nanostructure is prepared by in situ machining a metal-filled CNT, including peeling off carbon shells by spatially and elementally selective electron beam irradiation and further elongating the exposed metal nanorod. The microstructure and formation process of this CNT-clamped MAC are explored by both transmission electron microscopy observations and theoretical simulations. First-principles calculations indicate that strong covalent bonds are formed between the CNT and MAC. The electrical transport property of the CNT-clamped MAC was experimentally measured, and quantized conductance was observed.
部门归属	[tang, dai-ming; yin, li-chang; li, feng; liu, chang; yu, wan-jing; hou, peng-xiang; wu, bo; ma, xiu-liang; cheng, hui-ming] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. [lee, young-hee] sungkyunkwan univ, dept energy sci, dept phys, suwon 440746, south korea.;liu, c (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, peoples r china;cliu@imr.ac.cn cheng@imr.ac.cn
关键词	In Situ Microscope Nanoconnector Electrode Quantized Conductance Half-metallicity Quantized Conductance Point Contacts Size Contacts Gold Atoms Nanowires Signature Damage Scale
URL	查看原文
WOS记录号	WOS:000277822600009
引用统计	被引频次：30[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/321006/31468
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	D. M. Tang,L. C. Yin,F. Li,et al. Carbon nanotube-clamped metal atomic chain[J]. Proceedings of the National Academy of Sciences of the United States of America,2010,107(20):9055-9059.
APA	D. M. Tang.,L. C. Yin.,F. Li.,C. Liu.,W. J. Yu.,...&H. M. Cheng.(2010).Carbon nanotube-clamped metal atomic chain.Proceedings of the National Academy of Sciences of the United States of America,107(20),9055-9059.
MLA	D. M. Tang,et al."Carbon nanotube-clamped metal atomic chain".Proceedings of the National Academy of Sciences of the United States of America 107.20(2010):9055-9059.