Multifractal analysis of mobility edge in a one-dimensional quasiperiodic system

被引：1
|
作者：
Ananthakrishna, G
Zewdie, H
Thakur, PK
Brouers, F
机构：
[1] UNIV ADDIS ABABA, DEPT CHEM, ADDIS ABABA, ETHIOPIA
[2] SAHA INST NUCL PHYS, CALCUTTA 700064, W BENGAL, INDIA
[3] UNIV LIEGE, INST PHYS, B-4000 LIEGE, BELGIUM
来源：
PROGRESS IN CRYSTAL GROWTH AND CHARACTERIZATION OF MATERIALS | 1997年 / 34卷 / 1-4期
关键词：
mobility edge; multifractal spectrum; quasiperiodic potential;
D O I：
10.1016/S0960-8974(97)00008-9
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
We consider a one dimensional discrete Schrodinger equation with a quasiperiodic potential which exhibits mobility edges, Using multifractal analysis we show that the states at the mobility edge have a stable multifractal spectrum. Further, we show that the transition from extended to localized states can be described by using the width of the multifractal spectrum as an order parameter.
引用
收藏
页码：133 / 146
页数：14
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