Electron transport of an impurity quantum wire under THz electromagnetic field illumination

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	Electron transport of an impurity quantum wire under THz electromagnetic field illumination
	Y. Li; G. H. Zhou; X. B. Xiao; G. Cheng; W. H. Liao
	2004
发表期刊	Chinese Physics Letters
ISSN	0256-307X
卷号	21 期号:11 页码:2263-2266
摘要	We theoretically investigate the effect of a single finite-size attractive impurity on the electron transport of a semiconductor quantum wire under the influence of a terahertz electromagnetic field illumination. In the free-particle framework, the time-dependent electronic states are obtained by introducing an unitary transformation, and the electronic transmission of the system is obtained by using the scattering matrix approach. In the case of the field frequency resonant with the lateral energy spacing of the two lowest levels, a step-like structure for the transmission probability versus the total electron energy is predicted. Furthermore, due to the interplay between the single impurity and the applied field, the transmission probability curve in the non-resonant case shows a structure of a resonance dip on the interference pattern background with certain parameters of the impurity.
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.;zhou, gh (reprint author), hunan normal univ, dept phys, changsha 410081, peoples r china;ghzhou@hunnu.edu.cn
关键词	Conductance Quantization Channel Scattering Contacts Wave
URL	查看原文
WOS记录号	WOS:000225056300052
引用统计	被引频次：1[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/321006/35429
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. Li,G. H. Zhou,X. B. Xiao,et al. Electron transport of an impurity quantum wire under THz electromagnetic field illumination[J]. Chinese Physics Letters,2004,21(11):2263-2266.
APA	Y. Li,G. H. Zhou,X. B. Xiao,G. Cheng,&W. H. Liao.(2004).Electron transport of an impurity quantum wire under THz electromagnetic field illumination.Chinese Physics Letters,21(11),2263-2266.
MLA	Y. Li,et al."Electron transport of an impurity quantum wire under THz electromagnetic field illumination".Chinese Physics Letters 21.11(2004):2263-2266.