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

页码：3120 / 3123

页数：4

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