论文标题
在部分界限的两层电子系统中的等离子体和磁子元素
Plasmons and magnetoplasmons in partially bounded two-layer electron systems
论文作者
论文摘要
我们已经在一个由两个空间分离的层组成的电子系统中进行了分析研究 - 无限的二维电子系统（2DES）和2D条。我们的分析揭示了在附近局部并沿条带传播的等离子体模式的存在。这些模式的特征是波向量沿条带的方向以及横穿带的电荷密度节点N的数量。在长波长极限中，发现基本模式n = 0具有无间隙线性分散。当应用外部垂直磁场时，该模式保持无间隙并表现出特殊的磁性分散。我们分析了我们的发现与门控和部分门控二合一的等离子的先前建立的结果之间的相关性。
We have analytically studied plasmons in an electron system comprised of two spatially separated layers -- an infinite two-dimensional electron system (2DES) and a 2D strip. Our analysis reveals the existence of plasmon modes that are localized near and propagate along the strip. These modes are characterized by the wave vector in the direction of the strip, as well as the number of charge density nodes, N, across the strip. In the long-wavelength limit, the fundamental mode N=0 is found to have gapless linear dispersion. When the external perpendicular magnetic field is applied, this mode remains gapless and exhibits peculiar magnetodispersion. We analyze the correlation between our findings and the previously established results on plasmons in gated and partially gated 2DESs.
