The effects of geometrical shape and impurity position on the self-polarization of a donor impurity in an infinite GaAs/AlAs tetragonal quantum dot

AKANKAN O., ERDOĞAN İ., MEŞE A. İ., ÇİÇEK E., Akbas H.

Indian Journal of Physics, cilt.95, sa.7, ss.1341-1344, 2021 (SCI-Expanded, Scopus) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 95 Sayı: 7
  • Basım Tarihi: 2021
  • Doi Numarası: 10.1007/s12648-020-01813-4
  • Dergi Adı: Indian Journal of Physics
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Chemical Abstracts Core, INSPEC, zbMATH
  • Sayfa Sayıları: ss.1341-1344
  • Anahtar Kelimeler: Binding energy, Donor impurity, Ground state, Self-polarization, Subband energy, Tetragonal quantum dot
  • Trakya Üniversitesi Adresli: Evet

Özet

Using the variational method within the effective-mass approximation, the effects of geometrical shape and impurity position on the ground-state self-polarization and binding energy of a donor impurity are theoretically studied for the infinite GaAs/AlAs tetragonal quantum dot. We have found that the ground-state self-polarization and binding energy depend on geometrical shape and impurity-AlAs layer distance.