Acceptor 1s-2p± transitions in GaAs/Ga0.7Al0.3As quantum wells: Effects of spatially dependent screening under electric and magnetic fields

Akbaş H., AKTAŞ Ş., OKAN Ş. E., ULAŞ M., TOMAK M.

Physica Status Solidi (B) Basic Research, cilt.205, sa.2, ss.537-542, 1998 (SCI-Expanded, Scopus) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 205 Sayı: 2
  • Basım Tarihi: 1998
  • Dergi Adı: Physica Status Solidi (B) Basic Research
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.537-542
  • Trakya Üniversitesi Adresli: Evet

Özet

The valence subband energies in the presence of an electric-field are calculated using the fourth-order Runge-Kutta method. The 1s-and 2p+-like acceptor states in the presence of a magnetic field are then calculated variationally. The effects of the spatially dependent screening function ε(r) on the calculation of the transition energies are specifically investigated. The use of a constant ε0 is shown to yield better agreement with experimental results.