Sample-size dependence of the superconducting transition of ribbon-shaped Pb nanocrystals studied by scanning tunneling spectroscopy

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	Sample-size dependence of the superconducting transition of ribbon-shaped Pb nanocrystals studied by scanning tunneling spectroscopy
	Guan, ZL ; Ning, YX ; Song, CL ; Wang, J ; Jia, JF ; Chen, X ; Xue, QK ; Ma, XC
刊名	PHYSICAL REVIEW B
	2010
卷号	81 期号:5
关键词	ONE-DIMENSION NANOWIRES ARRAYS WIRES
ISSN号	1098-0121
通讯作者	Ma, XC (reprint author), Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China.
中文摘要	The spin transport in a strongly interacting spin-pump nanodevice is studied using the time-dependent variational-matrix-product-state approach. The precession magnetic field generates a dissipationless spin current through the quantum dot. We compute the real-time spin current away from the equilibrium condition. Both transient and stationary states are reached in the simulation. The essentially exact results are compared with those from the Hartree-Fock approximation (HFA). It is found that correlation effect on the physical quantities at quasisteady state are captured well by the HFA for small interaction strength. However the HFA misses many features in the real-time dynamics. Results reported here may shed light on the understanding of the ultrafast processes as well as the interplay of the nonequilibrium and strongly correlated effect in the transport properties.
收录类别	SCI
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/311004/52292]
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	Guan, ZL,Ning, YX,Song, CL,et al. Sample-size dependence of the superconducting transition of ribbon-shaped Pb nanocrystals studied by scanning tunneling spectroscopy[J]. PHYSICAL REVIEW B,2010,81(5).
APA	Guan, ZL.,Ning, YX.,Song, CL.,Wang, J.,Jia, JF.,...&Ma, XC.(2010).Sample-size dependence of the superconducting transition of ribbon-shaped Pb nanocrystals studied by scanning tunneling spectroscopy.PHYSICAL REVIEW B,81(5).
MLA	Guan, ZL,et al."Sample-size dependence of the superconducting transition of ribbon-shaped Pb nanocrystals studied by scanning tunneling spectroscopy".PHYSICAL REVIEW B 81.5(2010).