Polarizability and electric field gradient of two-electron quantum dots
Yükleniyor...
Dosyalar
Tarih
2020
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
PERGAMON-ELSEVIER SCIENCE LTD
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
The energy levels of the quantum dots are evaluated by using Quantum Genetic Algorithm procedure and Hartree-Fock Roothaan method. Based on the calculated energies and wave functions, static dipole polarizability, oscillator strength and electric field gradient of helium/helium-like quantum dots are calculated as a perturbative calculation. It is worth to note that impurity charge and dot radius have a strong effect on the dipole polarizability, the oscillator strength and the electric field gradient. In small dot radii, since the spatial confinement effect is dominant, the polarizability of system is very weak. The polarizability increases monotonically with the increase of dot radius and then reaches a saturation value in large dot radii. On the other hand, the electric field gradient increases as dot radius decreases.
Açıklama
Anahtar Kelimeler
Static polarizability, Oscillator strength, Electric field gradient, Helium/helium-like quantum dots
Kaynak
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
WoS Q Değeri
Q2
Scopus Q Değeri
Q2
Cilt
137
Sayı
Künye
Yakar, Y., Çakır, B., Özmen, A. (2020). Polarizability and Electric Field Gradient of Two-Electron Quantum Dots. Journal of Physics and Chemistry of Solids, 137, 1-6.
