Plasmons in finite three-tile quasiperiodic superlattices: On-site model

被引:0
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作者
Liu, NH
Feng, WG
Wu, X
机构
[1] CCAST,WORLD LAB,BEIJING 100080,PEOPLES R CHINA
[2] TONGJI UNIV,POHL INST SOLID STATE PHYS,SHANGHAI 200092,PEOPLES R CHINA
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中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We investigate the plasmon spectrum of a finite semiconductor superlattice in which the quantum wells are located at periodic sites but the electron densities are arranged in a three-tile quasiperiodic sequence. It is found that the branching rule of the on-site model is different from that of the transfer model. The quasiperiodic arrangement of the electron densities results in a number of surface modes. The localization of the modes is discussed.
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页码:167 / 172
页数:6
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