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Suppression of the Kondo effect in a quantum dot by microwave radiation

被引：34
作者：
Elzerman, JM
De Franceschi, S
Goldhaber-Gordon, D
van der Wiel, WG
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
来源：
JOURNAL OF LOW TEMPERATURE PHYSICS | 2000年 / 118卷 / 5-6期
关键词：
D O I：
10.1023/A:1004694017738
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We have studied the influence of microwave radiation on the transport properties of a semiconductor quantum dot in the Kondo regime. In the entire frequency range tested (10-50 GHz), the Kondo resonance vanishes by increasing the microwave power. This suppression of the Kondo resonance shows an unexpected scaling behavior. No evidence for photon-sideband formation is found. The comparison with temperature-dependence measurements indicates that radiation-induced spin dephasing plays an important role in the suppression of the Kondo effect.
引用
收藏
页码：375 / 389
页数：15
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