Electric field and concentration effects on the binding energy of a non-hydrogenic donor impurity in a finite cylindrical quantum well wire
Küçük Resim Yok
Tarih
2009
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Natl Inst Optoelectronics
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
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.
Açıklama
Anahtar Kelimeler
Quantum Well Wire, Donor Impurity, Electric Field And Concentration Effects, Cross-Section, Hydrogenic Impurities, Self-Polarization, Shallow Donors, States, Polarizability, Dependence, Density
Kaynak
Journal Of Optoelectronics And Advanced Materials
WoS Q Değeri
Q4
Scopus Q Değeri
Cilt
11
Sayı
12
