Electronic transport in a quantum wire under external terahertz electromagnetic irradiation

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	Electronic transport in a quantum wire under external terahertz electromagnetic irradiation
	G. H. Zhou; M. Yang; X. B. Xiao; Y. A. Li
	2003
发表期刊	Physical Review B
ISSN	1098-0121
卷号	68 期号:15
摘要	We theoretically study the electronic transport of a straight quantum wire partly irradiated under an external terahertz electromagnetic field at low temperature. Using the free-electron model and the scattering matrix approach, we demonstrate that although the electrons in a ballistic quantum wire only suffer from lateral collisions with photons, the reflection of electrons also takes place. Interestingly, when the frequency of the electromagnetic field is resonant with the separation of lateral energy levels of the wire, there is a sharp step structure in the electronic transmission probability as a function of the total energy of the electron or the strength of the field. The physical origin of this phenomena is the electron intersubband transition when a finite-range transversely polarized electromagnetic field irradiates a quantum wire. The interference pattern also appears in the electronic transmission probability as a function of the field-irradiated length.
部门归属	ccast, world lab, beijing 100080, peoples r china. 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), ccast, world lab, pob 8730, beijing 100080, peoples r china
关键词	Point Contacts Conductance Scattering Nanowires Field
URL	查看原文
WOS记录号	WOS:000186422600069
引用统计	被引频次：23[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/321006/36212
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	G. H. Zhou,M. Yang,X. B. Xiao,et al. Electronic transport in a quantum wire under external terahertz electromagnetic irradiation[J]. Physical Review B,2003,68(15).
APA	G. H. Zhou,M. Yang,X. B. Xiao,&Y. A. Li.(2003).Electronic transport in a quantum wire under external terahertz electromagnetic irradiation.Physical Review B,68(15).
MLA	G. H. Zhou,et al."Electronic transport in a quantum wire under external terahertz electromagnetic irradiation".Physical Review B 68.15(2003).