Continuum Wannier-Stark ladders strongly coupled by Zener resonances in semiconductor superlattices

被引：35
|
作者：
Helm, M [1 ]
Hilber, W
Strasser, G
De Meester, R
Peeters, FM
Wacker, A
机构：
[1] Univ Linz, Inst Halbleiter & Festkorperphys, A-4040 Linz, Austria
[2] Vienna Tech Univ, Inst Festkorperelektron, A-1040 Vienna, Austria
[3] Univ Instelling Antwerp, Dept Phys, B-2610 Wilrijk, Belgium
[4] Tech Univ Berlin, Inst Theoret Phys, D-10623 Berlin, Germany
来源：
PHYSICAL REVIEW LETTERS | 1999年 / 82卷 / 15期
关键词：
D O I：
10.1103/PhysRevLett.82.3120
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We report the first experiment which relates electronic transport and intraband optical absorption in a biased superlattice. Wannier-Stark ladders far in the continuum and strongly coupled by Zener resonances are observed in an n-type GaAs/AlGaAs superlattice using infrared spectroscopy. Additional transport measurements reveal the formation of electric-field domains, with electrons tunneling resonantly to the next-nearest superlattice period.
引用
收藏
页码：3120 / 3123
页数：4
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