A study of the effect of spatial electric field on the binding energy and polarization of a donor impurity in a GaAs/AlAs tetragonal quantum dot (TQD)
Küçük Resim Yok
Tarih
2013
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Academic Press Ltd- Elsevier Science Ltd
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
In this work, the effects of spatial electric field and ratios of dot edge lengths (L-z/L) on the binding energy and polarization of a donor impurity in TQD are presented. Calculations are performed within the effective-mass approximation using the variational procedure and considering an infinite confining potential on all surfaces of the system. The binding energy and polarization are calculated as a function of (L-z/L) ratio. It is found that binding energy and polarization of a donor impurity in TQD depend strongly on the L-z/L ratio, applied spatial electric field strength and impurity position. (c) 2012 Elsevier Ltd. All rights reserved.
Açıklama
Anahtar Kelimeler
Quantum Dot, Donor Impurity, Spatial Electric Field, Polarization, Binding Energy, Hydrogenic Impurity, Well-Wires, Magnetic-Field, Parabolic Confinement, Self-Polarization, Hydrostatic-Pressure, Shallow-Donor, States, Polarizability, Temperature
Kaynak
Superlattices And Microstructures
WoS Q Değeri
Q2
Scopus Q Değeri
Q2
Cilt
55
