Spin-dependent transport through a finite interacting quantum dot with intradot spin-flip scattering

被引：0

作者：

Ding, Kai-He ^{[1
]}

Zhu, Zhen-Gang ^{[2
]}

Liu, Xing-Hai ^{[1
]}

机构：

[1] Changsha Univ Sci & Technol, Dept Phys & Elect Sci, Changsha 410076, Peoples R China

[2] Univ Halle Wittenberg, Inst Phys, D-06120 Halle, Germany

来源：

MODERN PHYSICS LETTERS B | 2008年 / 22卷 / 05期

关键词：

quantum dot; Kondo effect; spin-flip scattering;

D O I：

10.1142/S0217984908014869

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Based on the non-equilibrium Green function method, we investigate the spin-dependent transport through a finite interacting quantum dot with intradot spin-flip scattering for non-collinear configuration. It is found that when the intradot spin-flip scattering is applied, the Kondo peaks in the local density of states and the conductance are split, and the splitting peaks are suppressed sharply. By changing the relative orientation of both magnetizations, amplitudes of the splitting peaks appear asymmetric, and reduce with the increasing relative angle theta of the two magnetic moments. It is uncovered that the presence of the spin-flip scattering tends to greatly suppress the spin-valve effect.

引用

页码：323 / 335

页数：13

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