Ground state normalized binding energy of impurity in asymmetric quantum wells under hydrostatic pressure

Akbaş, Halide; Sucu, S.; Minez, S.; Dane, C.; Akankan, O.; Erdoǧan, I.

doi:10.1016/j.spmi.2016.04.011

Cited by 8 publications

(2 citation statements)

References 23 publications

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“…The magnetic field is in-plane-oriented, taken along the confinement direction,

, and the Landau gauge

is used. The Hamiltonian system in the effective mass approximation is given by [ 14 , 15 , 16 ]

where z represents the confinement direction of the QW, T is the temperature,

is the pressure ( P )- and temperature ( T )-dependent electron effective mass in the well region, given by the expression [ 11 , 17 , 18 , 19 ]

where

is the free electron mass,

eV is the energy related to the momentum matrix element,

eV is the spin-orbit splitting, and

is the variation of the energy gap at the

-point for a GaAs semiconductor with a hydrostatic pressure and temperature as follows:

eV,

eV/kbar, and

eV/kbar 2 .…”

Section: Theorymentioning

confidence: 99%

The Combined Influence of Hydrostatic Pressure and Temperature on Nonlinear Optical Properties of GaAs/Ga0.7Al0.3As Morse Quantum Well in the Presence of an Applied Magnetic Field

2018

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Studies aimed at understanding the nonlinear optical (NLO) properties of GaAs/Ga0.7Al0.3As morse quantum well (QW) have focused on the intersubband optical absorption coefficients (OACs) and refractive index changes (RICs). These studies have taken two complimentary approaches: (1) The compact-density-matrix approach and iterative method have been used to obtain the expressions of OACs and RICs in morse QW. (2) Finite difference techniques have been used to obtain energy eigenvalues and their corresponding eigenfunctions of GaAs/Ga0.7Al0.3As morse QW under an applied magnetic field, hydrostatic pressure, and temperature. Our results show that the hydrostatic pressure and magnetic field have a significant influence on the position and the magnitude of the resonant peaks of the nonlinear OACs and RICs. Simultaneously, a saturation case is observed on the total absorption spectrum, which is modulated by the hydrostatic pressure and magnetic field. Physical reasons have been analyzed in depth.

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“…The magnetic field is in-plane-oriented, taken along the confinement direction,

, and the Landau gauge

is used. The Hamiltonian system in the effective mass approximation is given by [ 14 , 15 , 16 ]

where z represents the confinement direction of the QW, T is the temperature,

is the pressure ( P )- and temperature ( T )-dependent electron effective mass in the well region, given by the expression [ 11 , 17 , 18 , 19 ]

where

is the free electron mass,

eV is the energy related to the momentum matrix element,

eV is the spin-orbit splitting, and

is the variation of the energy gap at the

-point for a GaAs semiconductor with a hydrostatic pressure and temperature as follows:

eV,

eV/kbar, and

eV/kbar 2 .…”

Section: Theorymentioning

confidence: 99%

The Combined Influence of Hydrostatic Pressure and Temperature on Nonlinear Optical Properties of GaAs/Ga0.7Al0.3As Morse Quantum Well in the Presence of an Applied Magnetic Field

2018

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“…The entropy method is often used to determine the degree of dispersion of a certain index [52]. In this study, the comprehensive BE between PAEs and proteins and the comprehensive score of their corresponding reaction elements were normalized using the forward method [69]:…”

Section: Estimation Of the Comprehensive Effect Value Of Adverse Endi...mentioning

confidence: 99%

Human Endocrine-Disrupting Effects of Phthalate Esters through Adverse Outcome Pathways: A Comprehensive Mechanism Analysis

Li,

Yang,

et al. 2023

IJMS

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Phthalate esters (PAEs) are widely exposed in the environment as plasticizers in plastics, and they have been found to cause significant environmental and health hazards, especially in terms of endocrine disruption in humans. In order to investigate the processes underlying the endocrine disruption effects of PAEs, three machine learning techniques were used in this study to build an adverse outcome pathway (AOP) for those effects on people. According to the results of the three machine learning techniques, the random forest and XGBoost models performed well in terms of prediction. Subsequently, sensitivity analysis was conducted to identify the initial events, key events, and key features influencing the endocrine disruption effects of PAEs on humans. Key features, such as Mol.Wt, Q+, QH+, ELUMO, minHCsats, MEDC-33, and EG, were found to be closely related to the molecular structure. Therefore, a 3D-QSAR model for PAEs was constructed, and, based on the three-dimensional potential energy surface information, it was discovered that the hydrophobic, steric, and electrostatic fields of PAEs significantly influence their endocrine disruption effects on humans. Lastly, an analysis of the contributions of amino acid residues and binding energy (BE) was performed, identifying and confirming that hydrogen bonding, hydrophobic interactions, and van der Waals forces are important factors affecting the AOP of PAEs’ molecular endocrine disruption effects. This study defined and constructed a comprehensive AOP for the endocrine disruption effects of PAEs on humans and developed a method based on theoretical simulation to characterize the AOP, providing theoretical guidance for studying the mechanisms of toxicity caused by other pollutants.

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Mechanism analysis of synthetic musks-induced miscarriage risk in pregnant women: Molecular and adverse outcome pathways perspectives

et al. 2023

Science of The Total Environment

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Ground state normalized binding energy of impurity in asymmetric quantum wells under hydrostatic pressure

Cited by 8 publications

References 23 publications

The Combined Influence of Hydrostatic Pressure and Temperature on Nonlinear Optical Properties of GaAs/Ga0.7Al0.3As Morse Quantum Well in the Presence of an Applied Magnetic Field

The Combined Influence of Hydrostatic Pressure and Temperature on Nonlinear Optical Properties of GaAs/Ga0.7Al0.3As Morse Quantum Well in the Presence of an Applied Magnetic Field

Human Endocrine-Disrupting Effects of Phthalate Esters through Adverse Outcome Pathways: A Comprehensive Mechanism Analysis

Mechanism analysis of synthetic musks-induced miscarriage risk in pregnant women: Molecular and adverse outcome pathways perspectives

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