IMPURITY-INDUCED TETRAMERIZATION IN PEIERLS-DISTORTED POLYMERS - REDUCING THE BAND-GAP

被引：2

作者：

SURJAN, PR

机构：

[1] Technical University of Budapest, Institute of Physics, Quantum Theory Group, H-1521 Budapest

来源：

SOLID STATE COMMUNICATIONS | 1991年 / 77卷 / 11期

关键词：

D O I：

10.1016/0038-1098(91)90823-E

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Numerical calculations performed at the Huckel and Hubbard-SCF levels indicate that the band gap of conjugated polymers exhibiting bond-length alternation can be significantly lowered by "tetramerization", i.e. introducing weak diagonal perturbations in a periodic manner.

引用

页码：875 / 877

页数：3

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