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
收藏
页码：86801/1 / 86801/4
页数：4
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