半导体超晶格中的太赫兹布洛赫振荡

The Fourth International Conference on Advanced Semiconductor Devices and Microsystem Pub Date : 2002-12-16 DOI:10.1109/ASDAM.2002.1088492

H. Moravcová, J. Voves

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摘要

用蒙特卡罗方法研究了AlGaAs/GaAs超晶格中的布洛赫振荡(BO)。采用基于有效质量近似的二维模型研究了电子微带输运。考虑了极性声子和光学声子的散射以及杂质。研究了BO在电场强度、温度和离子杂质浓度等不同条件下的行为。

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Terahertz Bloch oscillations in semiconductor superlattices

Bloch Oscillations (BO) in AlGaAs/GaAs superlattices were studied by Monte Carlo method. A two-dimensional model based on the effective mass approximation was used for studying electron miniband transport. Scattering on polar optical and acoustic phonons as well as impurities were taken into account. Behavior of BO was studied under different conditions such as intensity of electric field temperature and concentration of ionised impurities.

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The Fourth International Conference on Advanced Semiconductor Devices and Microsystem

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