Spin-dependent transport through quantum dot with inelastic interactions

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	Spin-dependent transport through quantum dot with inelastic interactions
	Sun, G. Y. ; Wu, C. X. ; Chen, Y. ; Yang, Z. L. ; Wu CX(吴晨旭)
刊名	http://dx.doi.org/10.1140/epjb/e2006-00083-3
	2006-02
关键词	DOUBLE TUNNEL-JUNCTIONS POLARIZED TRANSPORT MAGNETORESISTANCE SPINTRONICS SINGLE
英文摘要	Using the Keldysh nonequilibrium Green function method, we theoretically investigate the electron transport properties of a quantum dot coupled to two ferromagnetic electrodes, with inelastic electron-phonon interaction and spin flip scattering present in the quantum dot. It is found that the electron-phonon interaction reduces the current, induces new satellite polaronic peaks in the differential conductance spectrum, and at the same time leads to oscillatory tunneling magnetoresistance effect. Spin flip scattering suppresses the zero-bias conductance peak and splits it into two, with different behaviors for parallel and anti-parallel magnetic configuration of the two electrodes. Consequently, a negative tunneling magnetoresistance effect may occur in the resonant tunneling region, with increasing spin flip scattering rate.
语种	英语
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/68800]
专题	物理技术－已发表论文
推荐引用方式 GB/T 7714	Sun, G. Y.,Wu, C. X.,Chen, Y.,et al. Spin-dependent transport through quantum dot with inelastic interactions[J]. http://dx.doi.org/10.1140/epjb/e2006-00083-3,2006.
APA	Sun, G. Y.,Wu, C. X.,Chen, Y.,Yang, Z. L.,&吴晨旭.(2006).Spin-dependent transport through quantum dot with inelastic interactions.http://dx.doi.org/10.1140/epjb/e2006-00083-3.
MLA	Sun, G. Y.,et al."Spin-dependent transport through quantum dot with inelastic interactions".http://dx.doi.org/10.1140/epjb/e2006-00083-3 (2006).