Electric field effect on the binding energy of a hydrogenic impurity in coaxial GaAs/AlxGa1-xAs quantum well-wires

AKTAŞ Ş., OKAN Ş. E., Akbaş H.

Superlattices and Microstructures, cilt.30, sa.3, ss.129-134, 2001 (SCI-Expanded, Scopus) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 30 Sayı: 3
  • Basım Tarihi: 2001
  • Doi Numarası: 10.1006/spmi.2001.1004
  • Dergi Adı: Superlattices and Microstructures
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.129-134
  • Anahtar Kelimeler: Binding energy, Double quantum well wires, Electric field
  • Trakya Üniversitesi Adresli: Evet

Özet

The ground state binding energy of a hydrogenic impurity in a coaxial cylindrical quantum well wire system subjected to an external electric field applied perpendicular to the symmetry axis of the wire system is studied within a variational scheme. Binding energy calculations were performed as functions of the inner barrier thickness and the electric field for two different impurity positions. The main result is that a sharp decrease in the binding energy, which may be important in device applications, occurs in certain conditions. © 2001 Academic Press.