Effects of hydrostatic pressure on the self-polarization in GaAs/Ga1-x Alx As quantum wells under the electric field

ERDOĞAN İ., AKANKAN O., Akbas H.

Physica E: Low-Dimensional Systems and Nanostructures, cilt.42, sa.2, ss.136-140, 2009 (SCI-Expanded, Scopus) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 42 Sayı: 2
  • Basım Tarihi: 2009
  • Doi Numarası: 10.1016/j.physe.2009.09.014
  • Dergi Adı: Physica E: Low-Dimensional Systems and Nanostructures
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.136-140
  • Anahtar Kelimeler: Electric field, Hydrostatic pressure, Quantum well, Self-polarization
  • Trakya Üniversitesi Adresli: Evet

Özet

In this work we have calculated the hydrostatic pressure and the electric field effect on the self-polarization (SP) in GaAs/Ga1-xAlx As quantum well. The binding energies of donors and the self-polarization in quantum wells are investigated with a variational method considering the influence of finite barriers under hydrostatic pressure. In calculations, we take into account the electronic effective mass, dielectric constant, barrier height, well size, varying with pressure. We find that the effect of hydrostatic pressure on the self-polarization depends on value of the well widths and applied electric fields. © 2009 Elsevier B.V. All rights reserved.