Anderson localization in Hubbard ladders

被引：2
|
作者：
Orignac, E [1 ]
Giamarchi, T [1 ]
机构：
[1] Univ Paris Sud, Phys Solides Lab, F-91405 Orsay, France
来源：
PHYSICA B-CONDENSED MATTER | 1999年 / 259-61卷
关键词：
Hubbard ladders; Anderson localization; Hamiltonian;
D O I：
10.1016/S0921-4526(98)00775-3
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The effect of a weak random potential on two-leg Hubbard ladders is investigated. The random potential is shown to induce Anderson localization except for attractive enough interactions, suppressing completely d-wave superconductivity. These localization effects remain very strong even for many ladders coupled by Josephson coupling. Both DC and AC conductivities and localization lengths are obtained. Consequences for the superconducting ladder compound Sr(x)Ca(14-x)Cu(24)O(41+delta) are discussed. (C) 1999 Elsevier Science B.V. All rights reserved.
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页码：1058 / 1059
页数：2
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