AC transport through a quantum dot:: from Kondo to Coulomb-blockade behaviour

被引：3
|
作者：
López, R [1 ]
Aguado, R
Platero, G
Tejedor, C
机构：
[1] CSIC, Inst Ciencia Mat, E-28049 Madrid, Spain
[2] Rutgers State Univ, Piscataway, NJ 08854 USA
[3] Univ Autonoma Madrid, E-28049 Madrid, Spain
来源：
PHYSICA E | 2000年 / 6卷 / 1-4期
关键词：
quantum dots; Kondo regime; Coulomb blockade;
D O I：
10.1016/S1386-9477(99)00188-5
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
We analyze the conductance (g) of a quantum dot (QD) in an AC potential at finite temperature. The Friedel-Langreth sum rule (FLSR) is generalized to include the effect of an AC potential and finite T. We have solved the Anderson Hamiltonian by means of a self-consistent procedure which fulfills the generalized FLSR. New features are found in the density of states (DOS) and in g when an AC voltage is applied. Our model describes the effect of an AC potential on the transition from Kondo regime to a Coulomb-blockade: behaviour as T increases. (C) 2000 Published by Elsevier Science B.V. All rights reserved.
引用
收藏
页码：379 / 381
页数：3
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