Noise at a Fermi-edge singularity in self-assembled InAs quantum dots

被引：21
|
作者：
Maire, N.
Hohls, F.
Luedtke, T.
Pierz, K.
Haug, R. J.
机构：
[1] Leibniz Univ Hannover, Inst Festkorperphys, D-30167 Hannover, Germany
[2] Phys Tech Bundesanstalt, D-38116 Braunschweig, Germany
来源：
PHYSICAL REVIEW B | 2007年 / 75卷 / 23期
关键词：
D O I：
10.1103/PhysRevB.75.233304
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We present noise measurements of self-assembled InAs quantum dots at high magnetic field. In comparison to I-V characteristics at zero magnetic field, we notice a strong current overshoot that is due to a Fermi-edge singularity. We observe an enhanced suppression in the shot noise power simultaneous to the current overshoot that is attributed to the electron-electron interaction at the Fermi-edge singularity.
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页数：4
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