Critical Exponents for Metal-Insulator Transition in Two-Dimensional Systems

被引：0
|
作者：
Wojtkiewicz, J. [1 ]
机构：
[1] Univ Warsaw, Fac Phys, Dept Math Methods Phys, PL-00682 Warsaw, Poland
来源：
ACTA PHYSICA POLONICA A | 2009年 / 115卷 / 05期
关键词：
CRITICAL-BEHAVIOR;
D O I：
10.12693/APhysPolA.115.931
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Three years ago, a new universality class, associated with the metal-insulator transition in quasi-two-dimensional compounds, was discovered. Imada has given explanation of the observed critical behaviour. Considerations in this work are besed on the assumption that the one-particle dispersion is quartic one instead of the standard quadratic behaviour. In this paper, it is shown that other possible natural non-standard dispersions lead to other possible critical behaviotir and critical exponents.
引用
收藏
页码：931 / 934
页数：4
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