Electric field and concentration effects on the binding energy of a non-hydrogenic donor impurity in a finite cylindrical quantum well wire

被引：0
作者：
Dalgic, S. [1 ]
Ozkapi, B. [1 ]
机构：
[1] Trakya Univ, Dept Phys, TR-22030 Edirne, Turkey
来源：
JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS | 2009年 / 11卷 / 12期
关键词：
Quantum well wire; donor impurity; electric field and concentration effects; CROSS-SECTION; HYDROGENIC IMPURITIES; SELF-POLARIZATION; SHALLOW DONORS; STATES; POLARIZABILITY; DEPENDENCE; DENSITY;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effects of the electric field and concentration on the non-hydrogenic binding energy of a shallow donor impurity in a finite cylindrical quantum well wire (CQWW) of GaAs/ AlxGa1-xAs was investigated. Within the effective mass approximation, we have calculated the non-hydrogenic binding energy of donor impurity by a variational method as a function of applied electric field, the wire radius, donor impurity positions and concentration of Al. We have investigated the concentration effect of Al on the non-hydrogenic binding energy as a function of electric field, wire radius and impurity position in QWW. It is shown that the difference in donor binding energy in the hydrogenic and non-hydrogenic regimes varies with radius of QWWs and impurity position while the interplay of the electric field is the same.
引用
收藏
页码：2120 / 2125
页数：6
相关论文
共 50 条
[31]   Geometrical and Electro-Magnetic Field Effects on the Hydrogenic Donor Impurity Energy Structure in a Non-Uniform Quantum Ribbon [J].
Suaza, Y. A. ;
Fonnegra, D. ;
Fulla, M. R. ;
Marin, J. H. .
8TH INTERNATIONAL CONFERENCE ON LOW DIMENSIONAL STRUCTURES AND DEVICES (LDSD 2016), 2018, 1934
[32]   Polaron effects on the energy of a hydrogenic donor impurity in GaAs-(Ga,Al)As quantum-well wires [J].
Villamil, Pablo ;
Cabra, Carlos ;
Porras-Montenegro, N. .
MICROELECTRONICS JOURNAL, 2008, 39 (3-4) :466-471
[33]   Third harmonic generation in a coaxial cylindrical quantum well wire: Magnetic field and geometrical size effects [J].
Rezaei, G. ;
Karimi, M. J. .
OPTICS COMMUNICATIONS, 2012, 285 (24) :5467-5471
[34]   Comparison of external electric and magnetic fields effect on binding energy of hydrogenic donor impurity in different shaped quantum wells [J].
Hu, Min ;
Wang, Hailong ;
Gong, Qian ;
Wang, Shumin .
EUROPEAN PHYSICAL JOURNAL B, 2018, 91 (01)
[35]   Binding energy and photoionization cross section of hydrogen-like donor impurity in quantum well-wire in electric and magnetic fields [J].
Mughnetsyan, V. N. ;
Barseghyan, M. G. ;
Kirakosyan, A. A. .
SUPERLATTICES AND MICROSTRUCTURES, 2008, 44 (01) :86-95
[36]   External electric field, hydrostatic pressure and temperature effects on the binding energy of an off-center hydrogenic impurity confined in a spherical Gaussian quantum dot [J].
Rezaei, G. ;
Taghizadeh, S. F. ;
Enshaeian, A. A. .
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 2012, 44 (7-8) :1562-1566
[37]   Effects of position-dependent effective mass of a hydrogenic donor impurity in a ridge quantum wire [J].
Khordad, R. .
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 2010, 42 (05) :1503-1508
[38]   The effects of electric and magnetic field on the hydrogenic donor impurity in GaN/AlxGa1-xN spherical quantum dot [J].
Wang Hai-Long ;
Wu Hui-Ting ;
Gong Qian ;
Feng Song-Lin .
QUANTUM DOTS AND NANOSTRUCTURES: SYNTHESIS, CHARACTERIZATION, AND MODELING VII, 2010, 7610
[39]   Hydrostatic pressure, impurity position and electric and magnetic field effects on the binding energy and photo-ionization cross section of a hydrogenic donor impurity in an InAs Pöschl-Teller quantum ring [J].
M. G. Barseghyan ;
M. E. Mora-Ramos ;
C. A. Duque .
The European Physical Journal B, 2011, 84 :265-271
[40]   Hydrostatic pressure, electric field, non-parabolicity and polaronic mass effects on the donor binding energy in a semimagnetic double quantum well [J].
Azmi, H. ;
Amri, N. ;
El-Bakkari, K. ;
Jaouane, M. ;
Fakkahi, A. ;
Sali, A. ;
Arraoui, R. ;
Ed-Dahmouny, A. .
EUROPEAN PHYSICAL JOURNAL PLUS, 2023, 138 (10)
12345