Donor impurity-related photoionization cross-section in parabolic quantum wires: Effects of intense laser field and applied electric field


Yesilgul U.

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, cilt.74, ss.34-38, 2015 (SCI İndekslerine Giren Dergi) identifier

  • Cilt numarası: 74
  • Basım Tarihi: 2015
  • Doi Numarası: 10.1016/j.physe.2015.06.021
  • Dergi Adı: PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
  • Sayfa Sayıları: ss.34-38

Özet

Within the effective mass approximation, the effects of the electric and intense laser fields on the binding energy and the photoionization cross-section of shallow-donor impurities in GaAs/GaAlAs parabolic quantum wires are investigated theoretically by using a variational method. The numerical results show that the electric and intense laser fields lead to significant changes in the binding energy and photoionization cross-section. (C) 2015 Elsevier B.V. All rights reserved.