半导体空穴气的介电函数
Dielectric function of the semiconductor hole gas
摘要：
本文在无规相位近似下研究了p型掺杂锌-Ⅲ-V半导体中均匀空穴气的介电函数，其中价带采用球近似下的Luttinger哈密顿量来模拟。在静态极限，我们发现了两个费米动量之间的重，轻孔的弗里德尔振荡的跳动，而在大频率的等离子体激元色散发生戏剧性的修正。
英文摘要：
We study the dielectric function of the homogeneous hole gas in p-doped zinc-blende III-V bulk semiconductors within random phase approximation with the valence band being modeled by Luttinger's Hamiltonian in the spherical approximation. In the static limit we find a beating of Friedel oscillations between the two Fermi momenta for heavy and light holes, while at large frequencies dramatic corrections to the plasmon dispersion occur.
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