Polaron effects in cylindrical GaAs/AlxGa1-x As core-shell nanowires

被引：4
|
作者：
Sun, Hui [1 ]
Liu, Bing-Can [2 ]
Tian, Qiang [1 ]
机构：
[1] Beijing Normal Univ, Dept Phys, Beijing 100875, Peoples R China
[2] Acad Armored Forces Engn, Dept Fundamental Courses, Beijing 100072, Peoples R China
来源：
CHINESE PHYSICS B | 2017年 / 26卷 / 09期
基金：
中国国家自然科学基金;
关键词：
core-shell nanowire; core radius; polaron effects; fractal dimension; FRACTIONAL-DIMENSIONAL SPACE; QUANTUM-WELLS; SUBSTRATE; THICKNESS; MODEL;
D O I：
10.1088/1674-1056/26/9/097302
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
By the fractal dimension method, the polaron properties in cylindrical GaAs/AlxGa1-x As core-shell nanowire are explored. In this study, the polaron effects in GaAs/AlxGa1-x As core-shell nanowire at different values of shell width and aluminum concentration are discussed. The polaron binding energy, polaron mass shift and fractal dimension parameter are numerically worked out each as a function of core radius. The calculation results show that the binding energy and mass shift of the polaron first increase and then decrease as the core radius increases, forming their corresponding maximum values for different aluminum concentrations at a given shell width. Polaron problems in the cylindrical GaAs/AlxGa1-x As core-shell nanowire are solved simply by using the fractal dimension method to avoid complex and lengthy calculations.
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页数：6
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