Effect of spin-orbit interactions on the energy, magnetic moment and susceptibility of an off-center donor impurity in a Gaussian quantum dot

Boda, Aalu (2020) Effect of spin-orbit interactions on the energy, magnetic moment and susceptibility of an off-center donor impurity in a Gaussian quantum dot. In: 3rd International Conference on Condensed Matter and Applied Physics, ICC 2019, 14 October 2019 - 15 October 2019, Bikaner.

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Abstract

The Rashba and Dresselhaus spin-orbit interactions and magnetic field effect on an off-center neutrally charged hydrogenic donor impurity D0 in a three-dimensional (3D) GaAs Gaussian quantum dot is investigated in the framework of effective-mass approximation theory. By performing a unitary transformation the effect of the spin-orbit interactions (αR,αD) The Rayleigh-Ritz variational method is employed for the resulting Hamiltonian with a simple wave function to determine the ground state (GS) energy, GS magnetic moment, and GS magnetic susceptibility of an off-centre hydrogenic donor impurity. The results show that the Rashba spin-orbit interaction reduces, the Dresselhaus spin-orbit interaction and magnetic field enhances the total GS energy of the donor impurity. © 2020 Author(s).

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IITH Creators:
IITH CreatorsORCiD
Item Type: Conference or Workshop Item (Paper)
Additional Information: Aalu Boda gratefully acknowledges the financial support from UGC (under grant No. F./31-1/2017/PDFSS-2017-18-TEL-16652), India.
Uncontrolled Keywords: Energy; Gaussian quantum dot; Hydrogenic donor impurity; Magnetic moment and susceptibility; Rashba and Dresselhaus spin-orbit interactions
Subjects: Physics
Divisions: Department of Physics
Depositing User: . LibTrainee 2021
Date Deposited: 02 Nov 2022 07:13
Last Modified: 02 Nov 2022 07:13
URI: http://raiith.iith.ac.in/id/eprint/11126
Publisher URL: http://doi.org/10.1063/5.0001170
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