MULTIFRACTALITY OF WAVE-FUNCTIONS AND WAVE-PACKETS AT THE METAL-INSULATOR-TRANSITION IN THE ANDERSON MODEL OF LOCALIZATION

被引：10

作者：

GRUSSBACH, H

SCHREIBER, M

机构：

[1] Institut für Physikalische Chemie, Johannes-Gutenberg-Universität, W-6500 Mainz

来源：

PHYSICA A | 1992年 / 191卷 / 1-4期

关键词：

D O I：

10.1016/0378-4371(92)90556-6

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The spatial behaviour of electronic wave functions at the metal-insulator transition in disordered systems is investigated with respect to the multifractal properties. The singularity spectrum and the generalized dimensions at the critical disorder in the band centre are determined. It is shown that a wave packet constructed by linear combination of several eigenstates shows the same multifractality. Consequently, it is expected that transport properties for wave packets can be derived from the multifractal properties of a single eigenstate.

引用

页码：394 / 400

页数：7

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