Effective conductivity of two-dimensional electrons in heterostructures with nonuniform doping

被引：1
|
作者：
Vasko, FT [1 ]
Hai, GQ
机构：
[1] Univ Sao Paulo, Inst Fis Sao Carlos, BR-13560970 Sao Carlos, SP, Brazil
[2] NAS, Inst Semicond Phys, UA-03650 Kiev, Ukraine
来源：
PHYSICAL REVIEW B | 2002年 / 65卷 / 04期
关键词：
D O I：
10.1103/PhysRevB.65.045314
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The frequency and temperature dependences of the effective conductivity are calculated in selectively doped heterostructures with long-range variations of energy levels caused by nonuniform donor distribution. The random electric field induced by lateral redistribution of the two-dimensional concentration modified, the frequency dispersion of response in comparison with the standard Drude mechanism, The spectral and temperature dependences of the conductivity are investigated and the interplay between the Drude mechanism and the random contribution is analyzed.
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页码：1 / 8
页数：8
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