Magnetic field effects on linear optical properties of GaN/AlN multi-wells quantum rings and dots with constant total effective radiuses

Solaimani, M.

doi:10.1007/s11082-016-0419-z

“…However, the probability density is localized with the quantum well regions. In Figure 5, we have compared three different systems with GaAs (m* = 0.067 m 0 [53] ), GaN (m* = 0.067 m 0 [54] ), and free electron masses.…”

Section: Resultsmentioning

confidence: 99%

Quantum information entropies of multiple quantum well systems in fractional Schrödinger equations

Solaimani

¹

,

Dong

²

2019

Int J of Quantum Chemistry

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In this work, we study the position and momentum information entropies of multiple quantum well systems in fractional Schrödinger equations, which, to the best of our knowledge, have not so far been studied. Through a confining potential, their shape and number of wells (NOW) can be controlled by using a few tuning parameters; we present some interesting quantum effects that only appear in the fractional Schrödinger equation systems. One of the parameters denoted by the Ld can affect the position and momentum probability densities if the system is fractional (1 < α < 2). We find that the position (momentum) probability density tends to be more severely localized (delocalized) in more fractional systems (ie, in smaller values of α). Affecting the Ld on the position and momentum probability densities is a quantum effect that only appears in the fractional Schrödinger equations. Finally, we show that the Beckner Bialynicki‐Birula‐Mycieslki (BBM) inequality in the fractional Schrödinger equation is still satisfied by changing the confining potential amplitude Vconf, the NOW, the fractional parameter α, and the confining potential parameter Ld.

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“…One of the important factors in both the electronic and optical properties of MSQDs is the number of wells in the structure. When the literature is examined, it is seen that the effect of the number of wells in multiple quantum wells have been widely investigated [25][26][27][28][29][30][31]. However, there are very few reports on MSQD [32][33][34].…”

Section: Introductionmentioning

confidence: 99%

“…One of the important factors in both the electronic and optical properties of MSQDs is the number of wells in the structure. When the literature is examined, while the effect of the number of wells in multiple quantum wells have been widely investigated [24][25][26][27][28][29][30], there are very few reports on MSQD [31][32][33]. Solaimani [34] have obtained eigenenergies and eigenfunctions of GaN/AlN MSQD by solving Schrödinger equation in cylindrical coordinates through numerical discretization technique.…”

Section: Introductionmentioning

confidence: 99%

Effect of number of well and core radius on the binding energy and optical properties of multishell spherical quantum dot with parabolic potential

Kirak

¹

2023

Phys. Scr.

2

0

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In the current study, the probability densities and binding energy of the ground state and first excited sate in multishell quantum dot with parabolic confinement potential have been examined. Also, the effects of core radius, the number of well in structure and the presence of impurity on the total optical absorption coefficient have been investigated. The finite difference method has been used to obtain the energy levels and related wave functions of the system within framework effective mass approximation. The results obtained reveal that the number of well, especially the first five values, have a considerable impact on the critical core values of binding energy. It is found that the presence of impurity and the number of wells cause a blue shift in the peak positions of total absorption coefficients. Moreover, our results show that these factors have an important effect on the magnitude of optical properties.

show abstract

“…One of the important factors in both the electronic and optical properties of MSQDs is the number of wells in the structure. When the literature is examined, while the effect of the number of wells in multiple quantum wells have been widely investigated [24][25][26][27][28][29][30], there are very few reports on MSQD [31][32][33]. Solaimani [34] have obtained eigenenergies and eigenfunctions of GaN/AlN MSQD by solving Schrödinger equation in cylindrical coordinates through numerical discretization technique.…”

Section: Introductionmentioning

confidence: 99%

Effect of number of well and core radius on the binding energy and optical properties of multishell spherical quantum dot with parabolic potential

Kirak

¹

2022

Preprint

0

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In the current study, the probability densities and binding energy of the ground state and first excited sate in multishell quantum dot with parabolic confinement potential have been examined. Also, the effects of core radius, the number of well in structure and the presence of impurity on the total optical absorption coefficient have been investigated. The finite difference method has been used to obtain the energy levels and related wave functions of the system within framework effective mass approximation. The results obtained reveal that the number of well, especially the first five values, have a considerable impact on the critical core values of binding energy. It is found that the presence of impurity and the number of wells cause a blue shift in the peak positions of total absorption coefficients. Moreover, our results show that these factors have an important effect on the magnitude of optical properties.

show abstract

Magnetic field effects on linear optical properties of GaN/AlN multi-wells quantum rings and dots with constant total effective radiuses

Cited by 9 publications

References 26 publications

Quantum information entropies of multiple quantum well systems in fractional Schrödinger equations

Quantum information entropies of multiple quantum well systems in fractional Schrödinger equations

Effect of number of well and core radius on the binding energy and optical properties of multishell spherical quantum dot with parabolic potential

Effect of number of well and core radius on the binding energy and optical properties of multishell spherical quantum dot with parabolic potential

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