SCALING THEORY OF LOCALIZATION - ABSENCE OF QUANTUM DIFFUSION IN 2 DIMENSIONS

被引:5276
作者
ABRAHAMS, E [1 ]
ANDERSON, PW [1 ]
LICCIARDELLO, DC [1 ]
RAMAKRISHNAN, TV [1 ]
机构
[1] PRINCETON UNIV,JOSEPH HENRY LABS,PRINCETON,NJ 08540
关键词
D O I
10.1103/PhysRevLett.42.673
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Arguments are presented that the T=0 conductance G of a disordered electronic system depends on its length scale L in a universal manner. Asymptotic forms are obtained for the scaling function (G)=dlnGdlnL, valid for both GGce2 and GGc. In three dimensions, Gc is an unstable fixed point. In two dimensions, there is no true metallic behavior; the conductance crosses over smoothly from logarithmic or slower to exponential decrease with L. © 1979 The American Physical Society.
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收藏
页码:673 / 676
页数:4
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