Kondo Temperature in Multilevel Quantum Dots

被引：9
|
作者：
Garate, Ion [1 ,2 ]
Affleck, Ian [1 ,2 ]
机构：
[1] Univ British Columbia, Dept Phys & Astron, Vancouver, BC V6T 1Z1, Canada
[2] Canadian Inst Adv Res, Toronto, ON M5G 1Z8, Canada
来源：
PHYSICAL REVIEW LETTERS | 2011年 / 106卷 / 15期
基金：
加拿大自然科学与工程研究理事会;
关键词：
SINGLE-ELECTRON TRANSISTOR; LIMIT; MODEL;
D O I：
10.1103/PhysRevLett.106.156803
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We develop a general method to evaluate the Kondo temperature in a multilevel quantum dot that is weakly coupled to conducting leads. Our theory reveals that the Kondo temperature is strongly enhanced when the intradot energy-level spacing is comparable or smaller than the charging energy. We propose an experiment to test our result, which consists of measuring the size dependence of the Kondo temperature.
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页数：4
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