Localization and shot noise in quantum nanostructures

被引：0
|
作者：
Macucci, M. [1 ]
Marconcini, P. [1 ]
Iannaccone, G. [1 ]
机构：
[1] Univ Pisa, Dipartimento Ingn Informaz, I-56122 Pisa, Italy
来源：
2011 21ST INTERNATIONAL CONFERENCE ON NOISE AND FLUCTUATIONS (ICNF) | 2011年
关键词：
SUPPRESSION; CONDUCTORS; SCATTERING; FORMULA;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We present an investigation with a quantum model of shot noise suppression in a series of cascaded barriers, showing that the well-known diffusive limit reported in the literature on the basis of semiclassical models can be achieved only in the presence of a mechanism leading to mode mixing, such as a magnetic field. Without mode mixing, strong localization appears, because the localization length is of the order of the mean free path. These results are consistent with existing experimental data on shot noise in superlattices.
引用
收藏
页码：139 / 143
页数：5
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