Spectra of cylindrical quantum dots: The effect of electrical and magnetic fields together with AB flux field


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IKHDAİR S., Hamzavi M., Sever R.

PHYSICA B-CONDENSED MATTER, cilt.407, sa.23, ss.4523-4529, 2012 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 407 Sayı: 23
  • Basım Tarihi: 2012
  • Doi Numarası: 10.1016/j.physb.2012.08.013
  • Dergi Adı: PHYSICA B-CONDENSED MATTER
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.4523-4529
  • Anahtar Kelimeler: Parabolic harmonic oscillator, Quantum dots, Electrical and magnetic fields, Aharonov-Bohm flux field, Light interband transition, Threshold frequency of absorption, INTERBAND LIGHT-ABSORPTION, 2ND-HARMONIC GENERATION, OPTICAL SUSCEPTIBILITY, HARMONIC-OSCILLATORS, WELL, STATES, SYSTEM, SPIN
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

We study the spectral properties of electron quantum dots (QDs) confined in 2D parabolic harmonic oscillator influenced by external uniform electrical and magnetic fields together with an Aharonov-Bohm (AB) flux field. We use the Nikiforov-Uvarov method in our calculations. Exact solutions for the energy levels and normalized wave functions are obtained for this exactly soluble quantum system. Based on the computed one-particle energetic spectrum and wave functions, the interband optical absorption GaAs spherical shape parabolic QDs is studied theoretically and the total optical absorption coefficient is calculated. (C) 2012 Elsevier B.V. All rights reserved.