Collective plasma response of interacting electrons localized in disordered GaAs/AlGaAs superlattices

被引:0
|
作者
Pusep, YA [1 ]
Fortunato, W [1 ]
González-Borrero, PP [1 ]
Toropov, AI [1 ]
Galzerani, JC [1 ]
机构
[1] Univ Fed Sao Carlos, Dept Fis, BR-13565905 Sao Carlos, Brazil
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中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The collective plasmon-like excitations were studied by Raman scattering in intentionally disordered GaAs/AlGaAs superlattices; with various strengths of disorder and different electron densities, We found that in the presence of disorder, the collective excitations tend to form coherently oscillating clusters with a finite extent. It was shown that both the temperature and disorder distroy them.
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页码:619 / 620
页数:2
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