Anderson localization on Falicov-Kimball model with next-nearest-neighbor hopping and long-range correlated disorder

被引：4

作者：

Maionchi, D. O. ^{[1
]}

Souza, A. M. C. ^{[2
]}

Herrmann, H. J. ^{[1
,3
]}

da Costa Filho, R. N. ^{[1
]}

机构：

[1] Univ Fed Ceara, Dept Fis, BR-60451970 Fortaleza, Ceara, Brazil

[2] Univ Fed Sergipe, Dept Fis, BR-49100000 Sao Cristovao, SE, Brazil

[3] ETH Honggerberg, IfB, CH-8093 Zurich, Switzerland

来源：

PHYSICAL REVIEW B | 2008年 / 77卷 / 24期

关键词：

D O I：

10.1103/PhysRevB.77.245126

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The phase diagram of correlated disordered electron systems is calculated within dynamical mean-field theory for the Anderson-Falicov-Kimball model with nearest-neighbor and next-nearest-neighbor hoppings. The half-filled band is analyzed in terms of the chemical potential of the system using the geometric and arithmetic averages. We also introduce the on-site energies exhibiting a long-range correlated disorder, which generates a system with similar characteristics as the one created by a random independent variable distribution. A decrease in the correlated disorder reduces the extended phase.

引用

页数：6

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