Electron scattering at one-dimensional chain with composition disorder

被引：1
作者：
Sedrakyan, DM
Badalyan, DA
Khachatryan, AZ
机构：
[1] Yerevan State Univ, Yerevan 375049, Armenia
[2] Armenian State Engn Univ, Yerevan 375046, Armenia
来源：
PHYSICS OF THE SOLID STATE | 2000年 / 42卷 / 04期
关键词：
D O I：
10.1134/1.1131288
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
A new method is proposed for determining average kinetic parameters of one-dimensional disordered systems. Electron scattering at a one-dimensional chain with structural and composition disorders is considered. The solution of a finite-difference equation derived for the average resistance shows that the dependence of the average resistance on the number of scatterers (sample length) for all states of the one-electron spectrum is a sum of three exponential functions irrespective of the type of random field in the system. It is proved that, in the case of a mixed disorder, all one-electron states are localized in a chain of delta potentials. (C) 2000 MAIK "Nauka/Interperiodica".
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页码：767 / 771
页数：5
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