Effects of crossed electric and magnetic fields on shallow donor impurity binding energy in a parabolic quantum well


Kasapoglu E. , Sari H. , Sokmen I.

CHINESE PHYSICS LETTERS, cilt.21, sa.12, ss.2500-2503, 2004 (SCI İndekslerine Giren Dergi) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 21 Konu: 12
  • Basım Tarihi: 2004
  • Doi Numarası: 10.1088/0256-307x/21/12/050
  • Dergi Adı: CHINESE PHYSICS LETTERS
  • Sayfa Sayıları: ss.2500-2503

Özet

We have calculated variationally the ground state binding energy of a hydrogenic donor impurity in a parabolic quantum well in the presence of crossed electric and magnetic fields. These homogeneous crossed fields are such that the magnetic field is parallel to the heterostructure layers and the electric held is applied perpendicular to the magnetic field. The dependence of the donor impurity binding energy to the well width and the strength of the electric and magnetic fields are discussed. We hope that the obtained results will provide important improvements in device applications, especially for a suitable choice of both fields in the narrow well widths.