Please use this identifier to cite or link to this item: http://repository.aaup.edu/jspui/handle/123456789/2860
Title: The effect of Rashba spin-orbit interaction and magnetic field on the thermo-magnetic properties of an electron confined in a 2D semiconductor quantum dot رسالة ماجستير
Authors: Ibrahim, Nouf Ibrahim Zaki$AAUP$Palestinian
Keywords: hamiltonion theory,quantum dot hamiltonian,energy spectra
Issue Date: 2020
Publisher: AAUP
Abstract: The energy spectra of Hamiltonian of a single electron confined in a parabolic quantum dot, in the presence of Rashba spin orbit interaction term effect, applied uniform magnetic field and topological defect had been reproduced in a closed form. The quantum dot energy spectra are used to compute the statistical mean energy and from which we obtain the thermodynamic and magnetic quantities, namely: heat capacity, magnetization and magnetic susceptibility. We show their dependences on the Hamiltonian physical parameters. The magnetic phase diagrams of the quantum dot material are shown as function of temperature, Rashba parameter and magnetic field. The results reveal that the magnetic field, temperature, confining frequency, in addition to Rashba and topological effects significantly affect the thermo-magnetic properties of the Quantum dot. The computed results show that quantum dot material changes its magnetic type from diamagnetic to paramagnetic as demonstrated in the magnetic phase diagrams contour plots. Furthermore, the behavior of the heat capacity of the QD is shown as a function of QD- Hamiltonian physical parameters. Our computed results are tested against the corresponding theoretical reported ones.
Description: Master’s degree in Physics
URI: http://repository.aaup.edu/jspui/handle/123456789/2860
Appears in Collections:Master Theses and Ph.D. Dissertations

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