Coherent Hall effect in a semiconductor superlattice -: art. no. 086801

被引：20

作者：

Bauer, T

Kolb, J

Hummel, AB

Roskos, HG

Kosevich, Y

Köhler, K

机构：

[1] Univ Frankfurt, Inst Phys, D-60054 Frankfurt, Germany

[2] MPI Phys Komplexer Syst, D-01187 Dresden, Germany

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

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 88卷 / 08期

关键词：

D O I：

10.1103/PhysRevLett.88.086801

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The coherent Hall effect denotes the transient Hall response of impulsively excited coherent charge-carrier wave packets in a solid. We report the first experimental study of this phenomenon (i) using a semiconductor superlattice in crossed electric and magnetic fields as a model for three-dimensional materials and (ii) employing a contactless optoelectronic technique to probe the transient currents. Two field regimes with distinctly different oscillatory wave packet dynamics are found, separated from each other by a transition region where all oscillations are suppressed.

引用

页码：86801/1 / 86801/4

页数：4

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