Collective excitations in the coupled quantum wires

CORC > 半导体研究所 > 中国科学院半导体研究所 > 中国科学院半导体研究所（2009年前）

	Collective excitations in the coupled quantum wires
	Yu JX ; Xia JB
刊名	solid state communications
	1996
卷号	98 期号:3 页码:227-233
关键词	semiconductors quantum wells dielectric response electron-electron interactions DIMENSIONAL ELECTRON-GAS CONFINED SEMICONDUCTOR STRUCTURES LATERAL MULTIWIRE SUPERLATTICES OPTICAL SINGULARITIES INTERSUBBAND PLASMONS MAGNETIC-FIELD WELL WIRE SYSTEMS DISPERSION SPECTRUM
ISSN号	0038-1098
通讯作者	yu jx chinese acad sci natl lab superlattices & microstruct pob 912 beijing 100083 peoples r china.
中文摘要	the dielectric response of an electron system composed of an array of parallel quantum wires with weak coupling and strong coupling are studied, and the dispersions of the collective excitations and the single particle excitations (spe) as functions of wave-vectors are given. it is found that for the nearly isolated quantum wires with several subbands occupation, there are a series of intra-subband collective excitations between corresponding intra-subband spe spectra. there also exist inter-subband collective excitations when q(x) not equal 0 (q(x) is the wave-vector component in the modulation direction), whose energies are close by the corresponding inter-subband spe spectra. the energy of the intra-subband mode decreases and that of inter-subband mode increases with q(x) increasing. the collective excitation dispersions show obvious anisotropy in the 1d quantum limit. the calculated results agree with the experiment well. the coupling between quantum wires affects markedly both the collective and single-particle excitations spectra. the system changes to a near-two-dimensional electron system gradually with increasing coupling.
学科主题	半导体物理
收录类别	SCI
语种	英语
公开日期	2010-11-17
内容类型	期刊论文
源URL	[http://ir.semi.ac.cn/handle/172111/15103]
专题	半导体研究所_中国科学院半导体研究所（2009年前）
推荐引用方式 GB/T 7714	Yu JX,Xia JB. Collective excitations in the coupled quantum wires[J]. solid state communications,1996,98(3):227-233.
APA	Yu JX,&Xia JB.(1996).Collective excitations in the coupled quantum wires.solid state communications,98(3),227-233.
MLA	Yu JX,et al."Collective excitations in the coupled quantum wires".solid state communications 98.3(1996):227-233.