MINIBAND FORMATION IN ASYMMETRIC DOUBLE-QUANTUM-WELL SUPERLATTICE STRUCTURES

被引：15
|
作者：
FAFARD, S
ZHANG, YH
MERZ, JL
机构：
[1] Center for Quantized Electronic Structures (QUEST), University of California, Santa Barbara
来源：
PHYSICAL REVIEW B | 1993年 / 48卷 / 16期
关键词：
D O I：
10.1103/PhysRevB.48.12308
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We report on a type of semiconductor quantum structure that combines the sharp optical properties of multiple quantum wells and the transport properties of superlattices. By using coupled asymmetric double quantum wells built with a narrow well having a single bound electron state resonant with an excited state of a wider well, miniband formation is achieved through the hybridized extended states resulting from these overlapping wave functions, but the ground states of the wide wells remain localized as in the case of multiple quantum wells.
引用
收藏
页码：12308 / 12311
页数：4
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