Resonant tunneling in GaAs/AlxGa1-xAs superlattices with aperiodic potential profiles

被引：9

作者：

Djelti, R. ^{[1
]}

Aziz, Z. ^{[1
]}

Bentata, S. ^{[1
]}

Besbes, A. ^{[1
]}

机构：

[1] Univ Abdelhamid Ibn Badis, Fac Sci, Dept Sci & Technol, Lab Valorisat Mat, Mostaganem 27000, Algeria

来源：

SUPERLATTICES AND MICROSTRUCTURES | 2011年 / 50卷 / 06期

关键词：

Superlattices (SL); Transmission coefficient; Aperiodic structure; Resonant tunneling (RT); CORRELATED DISORDER; QUANTUM; ALXGA1-XAS; STATES; WELLS;

D O I：

10.1016/j.spmi.2011.09.007

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Using the exact Airy function formalism and the transfer-matrix technique, we have numerically investigated in this paper the effect of intentional correlations in spatial disorder on transmission properties of one-dimensional superlattices. Such systems consist of two different structures randomly distributed along the growth direction, with the additional constraint that barriers (wells) of one kind always appear in triply. It is shown that the intentional correlations in disorder and superlattices structural parameters are responsible to obtain resonant tunneling in aperiodic structure. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：659 / 666

页数：8

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