Electromagnetic-field-induced cohesive force enhancement in a metallic nanowire

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	Electromagnetic-field-induced cohesive force enhancement in a metallic nanowire
	G. H. Zhou; X. B. Xiao; Y. Li; M. Yang
	2004
发表期刊	Nanotechnology
ISSN	0957-4484
卷号	15 期号:9 页码:1182-1185
摘要	We theoretically study the conducting electronic contribution to the cohesive force in a metallic nanowire irradiated under a transversely polarized external electromagnetic field at low temperatures and in the ballistic regime. In the framework of the free-electron model, we have obtained a time-dependent two-level electronic wavefunction by means of a unitary transformation. Using a thermodynamic statistical approach with this wavefunction, we have calculated the cohesive force in the nanowire. We show that the cohesive force can be divided into two components, one of which is independent of the electromagnetic field (static component), which is consistent with the existing results in the literature. The magnitude of the other component is proportional to the electromagnetic field strength. This extra component of the cohesive force is originally from the coherent coupling between the two lateral energy levels of the wire and the electromagnetic field.
部门归属	hunan normal univ, dept phys, changsha 410081, peoples r china. chinese acad sci, int ctr mat phys, shenyang 110015, peoples r china. chinese acad sci, inst semicond, natl lab superlatt & microstruct, beijing 100083, peoples r china.;zhou, gh (reprint author), hunan normal univ, dept phys, changsha 410081, peoples r china;ghzhou@hunnu.edu.cn
关键词	Quantum Transport Quantized Conductance Mechanical-properties Electronic Transport Point Contacts Jellium Model Fluctuations Nanocohesion Irradiation
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WOS记录号	WOS:000224022800013
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/35764
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	G. H. Zhou,X. B. Xiao,Y. Li,et al. Electromagnetic-field-induced cohesive force enhancement in a metallic nanowire[J]. Nanotechnology,2004,15(9):1182-1185.
APA	G. H. Zhou,X. B. Xiao,Y. Li,&M. Yang.(2004).Electromagnetic-field-induced cohesive force enhancement in a metallic nanowire.Nanotechnology,15(9),1182-1185.
MLA	G. H. Zhou,et al."Electromagnetic-field-induced cohesive force enhancement in a metallic nanowire".Nanotechnology 15.9(2004):1182-1185.