SINGULAR CONTINUOUS ELECTRON SPECTRUM FOR A CLASS OF CIRCLE SEQUENCES

被引:7
作者
HORNQUIST, M
JOHANSSON, M
机构
[1] Dept. of Phys. and Meas. Technol., Linkoping Univ.
来源
JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL | 1995年 / 28卷 / 02期
关键词
D O I
10.1088/0305-4470/28/2/022
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We derive substitution rules for a class of binary quasiperiodic sequences generated by circle maps whose rotation numbers are obtained from the precious means. The nature of the electron spectra for the corresponding diatomic chains is studied in the nearest-neighbour on-site tight-binding approximation using the transfer-matrix technique. By studying properties of the trace maps, we find that the spectrum is purely singular continuous in most of the studied cases.
引用
收藏
页码:479 / 495
页数:17
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