Mode softening in charge-density excitations of a two-dimensional electron gas driven by Rashba spin-orbit interaction

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）

	Mode softening in charge-density excitations of a two-dimensional electron gas driven by Rashba spin-orbit interaction
	Wu XG (Wu X. G.) ; Xu LJ (Xu L. J.) ; Zheng HZ (Zheng H. Z.)
刊名	physical review b
	2006
卷号	74 期号:16 页码:art.no.165309
关键词	LANDAU-LEVELS SEMICONDUCTORS LAYERS WAVE
ISSN号	1098-0121
通讯作者	wu, xg, chinese acad sci, inst semicond, sklsm, beijing 100083, peoples r china.
中文摘要	the electron density response of a uniform two-dimensional (2d) electron gas is investigated in the presence of a perpendicular magnetic field and rashba spin-orbit interaction (soi). it is found that, within the hartree-fock approximation, a charge density excitation mode below the cyclotron resonance frequency shows a mode softening behavior, when the spin-orbit coupling strength falls into a certain interval. this mode softening indicates that the ground state of an interacting uniform 2d electron gas may be driven by the rashba soi to undergo a phase transition to a nonuniform charge density wave state.
学科主题	半导体物理
收录类别	SCI
语种	英语
公开日期	2010-04-11
内容类型	期刊论文
源URL	[http://ir.semi.ac.cn/handle/172111/10314]
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	Wu XG ,Xu LJ ,Zheng HZ . Mode softening in charge-density excitations of a two-dimensional electron gas driven by Rashba spin-orbit interaction[J]. physical review b,2006,74(16):art.no.165309.
APA	Wu XG ,Xu LJ ,&Zheng HZ .(2006).Mode softening in charge-density excitations of a two-dimensional electron gas driven by Rashba spin-orbit interaction.physical review b,74(16),art.no.165309.
MLA	Wu XG ,et al."Mode softening in charge-density excitations of a two-dimensional electron gas driven by Rashba spin-orbit interaction".physical review b 74.16(2006):art.no.165309.