Simultaneous effects of temperature, hydrostatic pressure and electric field on the self-polarization and electric field polarization in a GaAs/Ga0.7Al0.3As spherical quantum dot with a donor impurity
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
Based on the effective mass approximation within a variational approach, we have calculated the temperature effect on the donor binding energy, self-polarization (SP), and electric field polarization (FP) in a GaAs/Ga0.7Al0.3As spherical quantum dot (SQD) with off center donor impurity under the action of electric field and hydrostatic pressure. The binding energy and polarizations are computed as a function of the temperature, and electric field strength for two different pressures. The results show that the values of the self-polarization are greater than the values of the electric field polarization. There are no reports on comparison of the SP and FP in low-dimensional structures, so far. (C) 2013 Published by Elsevier Ltd.
Açıklama
Anahtar Kelimeler
Self-Polarization, Quantum Dot, Temperature, Hydrostatic Pressure, Electric Field, Binding-Energy, States, Gaas-(Ga
Kaynak
Superlattices And Microstructures
WoS Q Değeri
Q2
Scopus Q Değeri
Q2
Cilt
59
