一维无序系统电子结构

来源期刊：中南大学学报(自然科学版)1993年第1期

论文作者：徐慧

文章页码：122 - 124

关键词：无序系统; 电子态密度; 局域化

Key words：disordered system; density of state; localization

摘    要：本文应用负本征值理论方法,计算了含有上万个粒子的一维无序系统的电子态密度,针对无序程度和系统大小等物理量,讨论了无序系统的电子结构。结果表明,随着无序程度的变大,电子的局域化程度加强,而随着无序系统的变大,局域化的电子数增多。

Abstract: The densities of electronic states of one-dimensional disordered system are computed for ten thousand sites by the negative eigenvalue theory. The electronic structure is discussed to the disordered degree and the system size. The result shows that the degree of electronic localization is enhanced with the increasing of the disordered degree and the number of localized electrons increases with the increasing of the system size.