Dynamical localization, stimulated absorption and emission in a double quantum well, induced by a THz field

被引：1

作者：

Aguado, R

Platero, G

机构：

[1] Instituto de Ciencia de Materiales, Cantoblanco

来源：

SUPERLATTICES AND MICROSTRUCTURES | 1997年 / 22卷 / 01期

关键词：

tunneling; AC transport;

D O I：

10.1006/spmi.1996.0332

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We analyze the I-V characteristics of a double quantum well driven by THz radiation. We perform a self-consistent calculation in order to evaluate the sequential current, where the electron-electron interaction is treated in a mean field approximation and temperature and scattering effects are included. In the presence of the AC field some interesting new physical features appear: dynamical localization for some values of the frequency and intensity of the field and negative conductance in the low-bias regime. These phenomena, already observed in superlattices are explained by means of our model. We compare our results with recent experimental information. (C) 1997 Academic Press Limited.

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页码：9 / 13

页数：5

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