Field-induced delocalization and Zener breakdown in semiconductor superlattices

被引：58

作者：

Rosam, B ^{[1
]}

Meinhold, D

Löser, F

Lyssenko, VG

Glutsch, S

Bechstedt, F

Rossi, F

Köhler, K

Leo, K

机构：

[1] Tech Univ Dresden, Inst Angew Photophys, D-01062 Dresden, Germany

[2] Univ Jena, Inst Festkorpertheorie & Theoret Opt, D-07743 Jena, Germany

[3] Politecn Torino, Ist Nazl Fis Mat, I-10129 Turin, Italy

[4] Politecn Torino, Dipartimento Fis, I-10129 Turin, Italy

[5] Fraunhofer Inst Appl Solid State Phys, D-79108 Freiburg, Germany

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 86卷 / 07期

关键词：

D O I：

10.1103/PhysRevLett.86.1307

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We investigate the energy spectrum and the electron dynamics of a band in a semiconductor superlattice as a function of the electric field. Linear optical spectroscopy shows that, for high fields, the well-known localization of the Bloch states is followed by a field-induced delocalization, associated with Zener breakdown. Using time-resolved measurements, we observe Bloch oscillations in a regime where they are damped by Zener breakdown.

引用

页码：1307 / 1310

页数：4

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