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	Plasmons in vertically coupled inas/gaas quantum dots
	Kang, Ting-Ting
刊名	Physical review b
	2007-08-01
卷号	76期号:7页码:6
ISSN号	1098-0121
DOI	10.1103/physrevb.76.075345
通讯作者	Kang, ting-ting(ktt219@163.com)
英文摘要	We investigate plasmon excitations in a quantum wire that consists of an infinite one-dimensional array of vertically coupled inas/gaas strained quantum dots (qds). the research is carried out in the framework of random-phase approximation using effective-mass theory. our formalism is capable of studying plasmons with strong tunneling among qds, which frustrate the conventionally adopted tight-binding approximation. based on this formalism, a systematic study on the intraminiband or intrasubband plasmon in vertically coupled inas/gaas strained qds is presented. it is found that an increase of the dot spacing will inevitably reduce the plasmon energy. in contrast, the role of dot height is relatively complex and depends on the dot spacing. the results demonstrate the possibility to engineer collective excitations in low dimensional systems by simply changing their geometric configuration.
WOS关键词	SEMICONDUCTOR STRUCTURES ; COLLECTIVE EXCITATIONS ; ARRAYS ; FIELD
WOS研究方向	Physics
WOS类目	Physics, Condensed Matter
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000249155300125
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2426970
专题	半导体研究所
通讯作者	Kang, Ting-Ting
作者单位	Chinese Acad Sci, Inst Semicond, Key Lab Semicond Mat Sci, Beijing 100083, Peoples R China
推荐引用方式 GB/T 7714	Kang, Ting-Ting. Plasmons in vertically coupled inas/gaas quantum dots[J]. Physical review b,2007,76(7):6.
APA	Kang, Ting-Ting.(2007).Plasmons in vertically coupled inas/gaas quantum dots.Physical review b,76(7),6.
MLA	Kang, Ting-Ting."Plasmons in vertically coupled inas/gaas quantum dots".Physical review b 76.7(2007):6.

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