Report
Strongly confined 2D parabolic quantum dot: Biexciton or Quadron?
| العنوان: | Strongly confined 2D parabolic quantum dot: Biexciton or Quadron? |
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| المؤلفون: | Quang, Nguyen Hong, Huong, Nguyen Que, Dung, Tran Anh, Thang, Nguyen Toan, Tuan, Hoang Anh |
| المصدر: | Physica B: Condensed Matter 602, 412591 (2021) |
| سنة النشر: | 2020 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Mesoscale and Nanoscale Physics, Condensed Matter - Materials Science |
| الوصف: | Excitonic systems localized in a single InAs/GaAs parabolic quantum dot are studied theoretically using an unrestricted Hartree-Fock method. The binding energies of excitons, conventional biexcitons and quadrons - four particles system of two electrons and two holes, in the ground state have been obtained as functions of magnetic field and confinement potential. It is found that for strong confinement, while the binding energy of biexciton is negative, the binding energy of quadron is positive, suggesting the strong lateral confinement of the parabolic quantum dot supports the formation of a quadron rather than a biexciton. Comment: Paper is in press in Physica B: Condensed Matter (date of submission: 15 Nov 2019; accepted for publication: 19 Sep 2020) 14 pages, 6 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1016/j.physb.2020.412591 |
| URL الوصول: | http://arxiv.org/abs/2010.09166 |
| رقم الانضمام: | edsarx.2010.09166 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1016/j.physb.2020.412591 |
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