A tunable Kondo effect in quantum dots

被引：1503

作者：

Cronenwett, SM

Oosterkamp, TH

Kouwenhoven, LP

机构：

[1] Delft Univ Technol, Dept Appl Phys, NL-2600 GA Delft, Netherlands

[2] Delft Univ Technol, DIMES, NL-2600 GA Delft, Netherlands

[3] Stanford Univ, Dept Phys, Stanford, CA 94305 USA

来源：

SCIENCE | 1998年 / 281卷 / 5376期

关键词：

D O I：

10.1126/science.281.5376.540

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

A tunable Kondo effect has been realized in small quantum dots. A dot can be switched from a Kondo system to a non-Kondo system as the number of electrons on the dot is changed from odd to even. The Kondo temperature can be tuned by means of a gate voltage as a single-particle energy state nears the Fermi energy. Measurements of the temperature and magnetic field dependence of a Coulomb-blockaded dot show good agreement with predictions of both equilibrium and nonequilibrium Kondo effects.

引用

页码：540 / 544

页数：5

共 22 条

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