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.

引用

页数：6

共 30 条

[1] Binding energy of the donor impurities in GaAs-Ga1-xAlxAs quantum well wires with Morse potential in the presence of electric and magnetic fields
Aciksoz, Esra
Bayrak, Orhan
Soylu, Asim
[J]. CHINESE PHYSICS B, 2016, 25 (10)
[2] Solving unsteady Schrodinger equation using the improved element-free Galerkin method
Cheng, Rong-Jun
Cheng, Yu-Min
[J]. CHINESE PHYSICS B, 2016, 25 (02)
[3] FRACTIONAL-DIMENSIONAL CALCULATION OF EXCITON BINDING-ENERGIES IN SEMICONDUCTOR QUANTUM-WELLS AND QUANTUM-WELL WIRES
CHRISTOL, P
LEFEBVRE, P
MATHIEU, H
[J]. JOURNAL OF APPLIED PHYSICS, 1993, 74 (09) : 5626 - 5637
[4] Transfer Matrix Approach for Two-State Scattering Problem with Arbitrary Coupling
Diwaker
Chakraborty, Aniruddha
[J]. CHINESE PHYSICS LETTERS, 2015, 32 (07)
[5] Analytical Solutions to the D-Dimensional Schrodinger Equation with the Eckart Potential
Gao, Jie
Zhang, Min-Cang
[J]. CHINESE PHYSICS LETTERS, 2016, 33 (01)
[6] EXCITONS IN ANISOTROPIC SOLIDS - THE MODEL OF FRACTIONAL-DIMENSIONAL SPACE
HE, XF
[J]. PHYSICAL REVIEW B, 1991, 43 (03): : 2063 - 2069
[7] Residual strain and piezoelectric effects in passivated GaAs/AlGaAs core-shell nanowires
Hocevar, Moira
Le Thuy Thanh Giang
Songmuang, Rudeesun
den Hertog, Martien
Besombes, Lucien
Bleuse, Joel
Niquet, Yann-Michel
Pelekanos, Nikos T.
[J]. APPLIED PHYSICS LETTERS, 2013, 102 (19)
[8] Long minority carrier lifetime in Au-catalyzed GaAs/AlxGa1-xAs core-shell nanowires
Jiang, N.
Parkinson, P.
Gao, Q.
Breuer, S.
Tan, H. H.
Wong-Leung, J.
Jagadish, C.
[J]. APPLIED PHYSICS LETTERS, 2012, 101 (02)
[9] Eigen Spectra of the Dirac Equation for Deformed Woods-Saxon Potential via the Similarity Transformation
Khalid, Alsadi S.
[J]. CHINESE PHYSICS LETTERS, 2014, 31 (12)
[10] Excitonic and impurity-related optical transitions in Be δ-doped GaAs/AlAs multiple quantum wells:: Fractional-dimensional space approach -: art. no. 235322
Kundrotas, J
Cerskus, A
Asmontas, S
Valusis, G
Sherliker, B
Halsall, MP
Steer, MJ
Johannessen, E
Harrison, P
[J]. PHYSICAL REVIEW B, 2005, 72 (23):

← 1 2 3 →