Phonon-assisted Kondo effect in single-molecule quantum dots coupled to ferromagnetic leads

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	Phonon-assisted Kondo effect in single-molecule quantum dots coupled to ferromagnetic leads
	Yu, H ; Wen, TD ; Liang, JQ ; Sun, QF
刊名	PHYSICS LETTERS A
	2008
卷号	372 期号:46 页码:6944
关键词	ELECTRON TRANSISTOR TRANSPORT PHYSICS RESONANCE SYSTEMS MODEL
ISSN号	0375-9601
通讯作者	Yu, H (reprint author), N Univ China, Dept Phys, Taiyuan 030051, Shanxi, Peoples R China.
中文摘要	Based on the infinite-U Anderson model spin-polarized transport through the tunnel magnetoresistance (TMR) system of single-molecule quantum dot is investigated under the interplay of strong electron correlation and electron-phonon (e-ph) coupling. The spectral density and the nonlinear differential conductance are studied using the extended non-equilibrium Green's function method through calculating the dot-level splitting self-consistently. The results exhibit that a serial of peaks emerge on the two sides of the main Kondo peak for the antiparallel magnetic configuration of electrodes, while for the parallel case both the main and phonon-assisted satellite Kondo peaks all split up into two asymmetric peaks even at zero-bias. Correspondingly, the nonlinear differential conductance displays a set of satellite-peaks around the Kondo-peak in the presence of the e-ph interaction. Furthermore, extra maxima and minima appear in the TMR curve. The TMR alternates between the positive and the negative values along with the variation of bias voltage. (C) 2008 Elsevier B.V. All rights reserved.
收录类别	SCI
资助信息	National Natural Science Foundation of China [10475053, 10474125, 10525418]
语种	英语
公开日期	2013-09-24
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/50886]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Yu, H,Wen, TD,Liang, JQ,et al. Phonon-assisted Kondo effect in single-molecule quantum dots coupled to ferromagnetic leads[J]. PHYSICS LETTERS A,2008,372(46):6944.
APA	Yu, H,Wen, TD,Liang, JQ,&Sun, QF.(2008).Phonon-assisted Kondo effect in single-molecule quantum dots coupled to ferromagnetic leads.PHYSICS LETTERS A,372(46),6944.
MLA	Yu, H,et al."Phonon-assisted Kondo effect in single-molecule quantum dots coupled to ferromagnetic leads".PHYSICS LETTERS A 372.46(2008):6944.