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Surface-acoustic-wave-induced space-charge waves in electron-hole systems

机译:表面声波在电子-空穴系统中引起的空间电荷波

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摘要

Space-charge waves in an electron-hole system are studied, which are excited by a moving grating provided by a surface acoustic wave (SAW). The SAW induces a constant current that may change its sign, when a constant electric field is applied opposite to the wave propagation direction. Current resonances are predicted to appear, when the SAW wavelength and frequency match the ones of the space-charge wave. (c) 2005 Elsevier Ltd. All rights reserved.
机译:研究了电子-空穴系统中的空间电荷波,该表面电荷波由表面声波(SAW)提供的移动光栅激发。当在与波传播方向相反的方向施加恒定电场时,SAW会感应出恒定电流,该恒定电流可能会改变其符号。当SAW的波长和频率与空间电荷波的波长和频率匹配时,预计会出现电流谐振。 (c)2005 Elsevier Ltd.保留所有权利。

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