The diamagnetic susceptibilities of donors in quantum wells with anisotropic effective mass

KASAPOĞLU E., UNGAN F., Sari H., Soekmen I.

SUPERLATTICES AND MICROSTRUCTURES, cilt.46, sa.6, ss.817-822, 2009 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 46 Sayı: 6
  • Basım Tarihi: 2009
  • Doi Numarası: 10.1016/j.spmi.2009.10.004
  • Dergi Adı: SUPERLATTICES AND MICROSTRUCTURES
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.817-822
  • Anahtar Kelimeler: Diamagnetic susceptibility, Anisotropic effective mass, Quantum well, HYDROGENIC IMPURITY STATES, BINDING-ENERGIES
  • Sivas Cumhuriyet Üniversitesi Adresli: Evet

Özet

The diamagnetic susceptibility of a hydrogenic donor placed in Si, Ge and GaAs quantum wells with infinite confinement potential which have different effective mass anisotropy parameters (gamma = m(perpendicular to)L/m(parallel to)) has been investigated as a function of the well sizes. The binding energies of the donor have also been computed using a trial wave function with two parameters in the framework of the effective mass approximation. It has been observed that the diamagnetic susceptibility of the donor in the anisotropic materials converges rapidly to the bulk limit as the well size increases. (C) 2009 Elsevier Ltd. All rights reserved.