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This chapter presents a theoretical study of GaAs/GaAlAs core–shell quantum disks, focusing on the effects of nanostructure dimensions and in-plane electric fields on their electronic and optical properties. By solving the Schrödinger equation within the effective-mass approximation using finite element analysis, we examine the ionization energy and Stark-shift, showing that both field orientation and disk size significantly modulate these quantities. The study also explores the influence of and geometry on magnetization susceptibility, polarizability, and electric dipole moment, revealing how these properties can be tailored for optimized device performance. These findings provide insights for designing GaAs-based photonic and nanoelectronic devices, where precise control over field-dependent properties is critical.

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Stark-Shift, Binding Energy, Diamagnetic Response, Polarizability and Dipole Moment of Shallow Donor-Impurity in Core/Shell Quantum Disk

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  • 发表日期：

    2026年

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  • Ibrahim Maouhoubi

摘要

This chapter presents a theoretical study of GaAs/GaAlAs core–shell quantum disks, focusing on the effects of nanostructure dimensions and in-plane electric fields on their electronic and optical properties. By solving the Schrödinger equation within the effective-mass approximation using finite element analysis, we examine the ionization energy and Stark-shift, showing that both field orientation and disk size significantly modulate these quantities. The study also explores the influence of and geometry on magnetization susceptibility, polarizability, and electric dipole moment, revealing how these properties can be tailored for optimized device performance. These findings provide insights for designing GaAs-based photonic and nanoelectronic devices, where precise control over field-dependent properties is critical.