Metal-insulator transition in anisotropic systems

被引：0

作者：

Milde, F ^{[1
]}

Römer, RA ^{[1
]}

Schreiber, M ^{[1
]}

机构：

[1] Tech Univ, Inst Phys, D-09107 Chemnitz, Germany

来源：

PROCEEDINGS OF THE 25TH INTERNATIONAL CONFERENCE ON THE PHYSICS OF SEMICONDUCTORS, PTS I AND II | 2001年 / 87卷

关键词：

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We study the three-dimensional Anderson model of localization with anisotropic hopping, i.e., weakly coupled chains and weakly coupled planes. In our extensive numerical study we identify and characterize the metal-insulator transition by means of the transfer-matrix method and energy level statistics. Using high accuracy data for large system sizes we estimate the critical exponent as v = 1.6 +/- 0.3. This is in agreement with its value in the isotropic case and in other models of the orthogonal universality class.

引用

页码：148 / 149

页数：2

共 25 条

[1] SCALING THEORY OF LOCALIZATION - ABSENCE OF QUANTUM DIFFUSION IN 2 DIMENSIONS [J].