Absence of Wannier-Stark ladders in finite superlattices

被引：0
|
作者：
Pereyra, P [1 ]
Velasco-Chávez, A [1 ]
机构：
[1] Univ Nacl Autonoma Mexico, Area Fis Teor & Mat Condensada, Mexico City 02200, DF, Mexico
来源：
MICROELECTRONICS JOURNAL | 2005年 / 36卷 / 3-6期
关键词：
superlattice; Wannier-Stark ladders; Wannier-Stark tates;
D O I：
10.1016/j.mejo.2005.02.030
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：
Precise theoretical transmission coefficients calculations provide an extremely good account of individual Wannier-Stark states splitting and localization effects, resolved recently in a highly accurate experiment for four and five period finite superlattices. At the same time, we show that the so-called Wannier-Stark ladders, predicted for nfinite systems are absent for finite superlattices. The observed energy levels are nothing else than the intra miniband energy levels. (c) 2005 Elsevier Ltd. All rights reserved.
引用
收藏
页码：401 / 403
页数：3
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