Effects of multiple reflection in the process of inelastic electron transport through an anisotropic magnetic atom

被引：6
|
作者：
Val'kov, V. V. [1 ]
Aksenov, S. V. [1 ]
Ulanov, E. A. [2 ]
机构：
[1] Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
[2] Siberian State Aerosp Univ, Krasnoyarsk 660014, Russia
来源：
JETP LETTERS | 2013年 / 98卷 / 07期
基金：
俄罗斯基础研究基金会;
关键词：
QUANTUM; STATE;
D O I：
10.1134/S0021364013200162
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The effect of multiple reflection in the process of electron transport on the current-voltage characteristics of an adsorbed magnetic atom with single-ion anisotropy has been investigated. All orders of the perturbation theory with respect to the parameter of coupling between the contacts and the multilevel impurity have been taken into account by the Keldysh diagram technique with the use of Hubbard operators. It has been shown that the current-voltage characteristics of the system in a strongly nonequilibrium regime contains regions of negative differential conductance. The ways of enhancing this effect are discussed.
引用
收藏
页码：403 / 409
页数：7
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