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首页> 外文期刊>Physics of plasmas >Electrostatic Langmuir waves and spin-electron-acoustic waves in spin polarized plasma double layer
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Electrostatic Langmuir waves and spin-electron-acoustic waves in spin polarized plasma double layer

机译：静电朗米尔波和自旋偏振等离子体双层中的旋转电子声波

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摘要

The quantum hydrodynamic model for the electrostatic wave in the two parallel layers of two dimensional electron gases is developed. It is considered for two regimes: classic regime and quantum regime with the separate spin evolution. There are two Langmuir-like waves in the classic regime. Their frequency (omega) dependencies have an interferencelike pattern on concentrations omega 2 similar to(n01+n02 +/- 2n01n02), where 01 and n(02) are the equilibrium concentrations of the electrons in each layer of electron gas and +/- refers to the spectrum of two waves. This spectrum appears instead of the couple of Langmuir waves in two noninteracting two-dimensional electron gases. In the quantum regime, the separate spin evolution leads to the spectrum of four waves instead of the two Langmuir waves present in two noninteracting two-dimensional electron gases. Two extra waves are related to the separate spin evolution of electrons. They are associated with the spin-electron acoustic waves. The contribution of the quantum Bohm potential has also been considered. The influence of the concentrations of electrons, the interlayer distance, and the spin polarization on the spectrum of waves is studied numerically. Published under license by AIP Publishing.
机译：开发了两维电子气体的两个平行层静电波的量子流体动力模型。它被认为是两个制度：经典政权和量子制度，具有单独的自旋进化。经典政权中有两个Langmuir类似的波浪。它们的频率（Omega）依赖性在浓度Omega 2上具有类似于（n01 + n02 +/- 2n01n01n01）的干扰素图案，其中01和n（02）是每层电子气体和+/-的电子的平衡浓度指两波的光谱。出现该光谱而不是两个非交互式二维电子气体中的朗美波耦合。在量子制度中，单独的自旋进化导致四个波的光谱而不是两个非交互式二维电子气体中存在的两个朗马波。两个额外的波与电子的单独自旋演变有关。它们与旋转电子声波相关联。也考虑了量子福利潜力的贡献。在数值上研究了电子浓度，层间距离和自旋极化对波谱的影响。通过AIP发布在许可证下发布。

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