ne-dimensional Anderson model with dichotomic correlation

被引:8
作者
Kaya, T. [1 ]
机构
[1] Yildiz Tech Univ, Dept Phys, TR-34210 Istanbul, Davutpasa, Turkey
关键词
D O I
10.1140/epjb/e2007-00356-3
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
A one-dimensional diagonal tight binding electronic system with dichotomic correlated disorder is investigated. The correlation of random potential exponentially decays with distance and also with the dichotomic correlation parameter lambda. Using a appropriate approximation, an analytical transmission coefficient expression is obtained. The obtained analytical expression is then tested against the result of the direct numerical computation of the average transmission coefficient < T > for the Anderson model, by changing the system parameters. In the thermodynamic limit the transmission coefficient relation indicates the absence of localization-delocalization transition, which is entirely consistent with numerical predictions.
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页码:313 / 318
页数:6
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