Charge and spin configurations in the coupled quantum dots with Coulomb correlations induced by tunneling current

被引：19
|
作者：
Arseyev, P. I. [1 ]
Maslova, N. S. [2 ]
Mantsevich, V. N. [2 ]
机构：
[1] RAS, PN Lebedev Phys Inst, Moscow 119991, Russia
[2] Moscow MV Lomonosov State Univ, Dept Phys, Moscow 119991, Russia
来源：
EUROPEAN PHYSICAL JOURNAL B | 2012年 / 85卷 / 12期
关键词：
LARGE-N EXPANSION; MIXED-VALENCE; TRANSPORT; IMPURITY;
D O I：
10.1140/epjb/e2012-30579-x
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
We investigated the peculiarities of non-equilibrium charge states and spin configurations in the system of two strongly coupled quantum dots (QDs) weakly connected to the electrodes in the presence of Coulomb correlations. We analyzed the modification of non-equilibrium charge states and different spin configurations of the system in a wide range of applied bias voltage and revealed well pronounced ranges of system parameters where negative tunneling conductivity appears due to the Coulomb correlations.
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页数：8
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