Energy Spectrum of Shallow Donor in Elongated InAsGaAs Volcano-Shaped Quantum Dot
Joint Authors
Garcia, L. F.
Mikhailov, I. D.
Escorcia, R. A.
Source
Advances in Condensed Matter Physics
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-04-04
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
We study the effect of the nonparabolicity of the conduction band on the spectral properties of the shallow donor in elongated InAs/GaAs quantum dots with volcano-shaped profile in the framework of the Kane model by using a simple semiempiric relation between geometrical parameters of the quantum dot profile and the confinement potential, governing the in-plane electron’s movement.
We represent the solution of the Schrödinger equation in the form of double Bessel-Fourier series expansion.
We show that the nonparabolicity of dispersion of the conduction band, given by the Kane formula, conduces to significant lowering of the donor energies and to stronger confinement of the electron within the quantum dot.
Calculated results for the energies as functions of the electric and magnetic fields for different quantum dot dimensions were compared with those obtained in the effective mass approximation.
Our results exhibit a high sensibility of the probability density of electron distribution in volcano-shaped quantum dot to the variation of the external magnetic and electric fields.
American Psychological Association (APA)
Garcia, L. F.& Escorcia, R. A.& Mikhailov, I. D.. 2018. Energy Spectrum of Shallow Donor in Elongated InAsGaAs Volcano-Shaped Quantum Dot. Advances in Condensed Matter Physics،Vol. 2018, no. 2018, pp.1-13.
https://search.emarefa.net/detail/BIM-1117260
Modern Language Association (MLA)
Garcia, L. F.…[et al.]. Energy Spectrum of Shallow Donor in Elongated InAsGaAs Volcano-Shaped Quantum Dot. Advances in Condensed Matter Physics No. 2018 (2018), pp.1-13.
https://search.emarefa.net/detail/BIM-1117260
American Medical Association (AMA)
Garcia, L. F.& Escorcia, R. A.& Mikhailov, I. D.. Energy Spectrum of Shallow Donor in Elongated InAsGaAs Volcano-Shaped Quantum Dot. Advances in Condensed Matter Physics. 2018. Vol. 2018, no. 2018, pp.1-13.
https://search.emarefa.net/detail/BIM-1117260
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1117260