一类广义 Fibonacci 准晶电子能谱分析  

ELECTRONIC SPECTRUM FOR A GENERALIZED FIBONACCI QUASILATTICE

作　　者：赵冠湘[1] 傅秀军[1] 

机构地区：[1]华南理工大学应用物理系

出　　处：《华南理工大学学报（自然科学版）》1997年第9期19-23,共5页Journal of South China University of Technology(Natural Science Edition)

摘　　要：讨论一类广义Ｆｉｂｏｎａｃｃｉ准周期链ｏｎ＿ｓｉｔｅ模型的电子能谱，其原子排列由Ｂ→Ａ，Ａ→ＡＢＢ产生。重整化群方法分析表明，一级近似时能谱为五主支结构；二级近似时每个主支又有三分支。数值计算结果证实了以上的分析，但并未发现有明显的连续谱，这与ｔｒａｎｓｆｅｒ模型的谱不同。This paper deals with the electronic spectra of the on_site model of a generalized Fibonacci quasilattice,the atom sequence of which is given by B→A and A→ABB.Renormalization_group analyses show that the spectrum consists of five main branches in the first_order approximation and each main branch will be trifurcate in the second_order approximation.The results are confirmed by numerical calculations,without apparent continuous spectrum,which is different from that of the transfer model.

关 键 词：准晶体 广义Fibonacci排列 能谱结构 座模型 迁移模型 

分 类 号：O753[理学—晶体学]