Diamagnetic Susceptibility of a Hemi-Cylindrical Quantum Dot in the Presence of an Off-Center Donor Atom

• Published in: Diffusion and defect data. Solid state data. Pt. A, Defect and diffusion forum Vol. 428; pp. 83 - 90
• Main Authors: Falyouni, Farid, Chouef, Soufiane, Boussetta, Reda, Duque, Carlos Alberto, El-Miad, Abdelhamid Kerkour, Hbibi, Mohammed, Belamkadem, Laaziz, Chnafi, Mohamed, El Hadi, Mohamed, El Moussaouy, Abdelaaziz, Mommadi, O., Duque, Carlos Mario
• Format: Journal Article
• Language: English
• Published: Zurich Trans Tech Publications Ltd 22.08.2023
• Subjects: Diamagnetism; Finite difference method; Impurities; Mathematical analysis; Quantum dots; Schrodinger equation; Diamagnetic Susceptibility; Hemi-Cylindrical Quantum Dot; Electron-Donor Atom; Finite Difference Method
• ISSN: 1012-0386; 1662-9507; 1662-9507
• DOI: 10.4028/p-KTnG7c

In this paper, we have studied the electron-donor atom diamagnetic susceptibility confined in a hemi-cylindrical quantum dot (QD). It is analyzed specifically how the impurity location affects diamagnetic susceptibility. The 3D Schrödinger equation in hemi-cylindrical QD was solved using the finite difference method within the effective mass approximation. This is accomplished by performing our system's Hamiltonian in hemi-cylindrical geometry. We have demonstrated that the hemicylindrical size and impurity position have a significant impact on the diamagnetic susceptibility. When the impurity is localized in the center of the nanostructure for the hemi-cylindrical QD, the diamagnetic susceptibility reaches its greatest value.