LINEAR AND NONLINEAR-WAVES IN EDGE CHANNELS

被引:25
作者
ZHITENEV, NB [1 ]
HAUG, RJ [1 ]
VONKLITZING, K [1 ]
EBERL, K [1 ]
机构
[1] RUSSIAN ACAD SCI,INST SOLID STATE PHYS,CHERNOGOLOVKA 142432,RUSSIA
来源
PHYSICAL REVIEW B | 1995年 / 52卷 / 15期
关键词
D O I
10.1103/PhysRevB.52.11277
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We have studied edge magnetoplasmons confined in the edge channels of a two-dimensional electron gas by analyzling the response of a voltage pulse at different distances from the excitation point. The transition from the linear to the nonlinear response with increasing voltage level is investigated as a function of the magnetic field (filling factor), the polarity of the applied pulse, and the temperature. Damping originates from the penetration of the wave into the bulk of the two-dimensional system which depends strongly on the width of the incompressible strips. The observed strong increase of the damping with temperature results from the smearing of the restricting incompressible strip. In the nonlinear regime the formation of shock waves can be observed.
引用
收藏
页码:11277 / 11283
页数:7
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