https://doi.org/10.1140/epjp/s13360-024-05007-3
Regular Article
Comparative study of thermodynamics properties of GaAs circular, square and triangular quantum dot under piezoelectric polaron and electromagnetic field
1
Mesoscopic and Multilayers Structures Laboratory, Department of Physics, Faculty of Science, University of Dschang, P.O. Box 479, Dschang, Cameroon
2
Center for Atomic, Molecular Physics and Quantum Optic, Faculty of Science, University of Douala, P.O. 8580, Douala, Cameroon
Received:
2
October
2023
Accepted:
14
February
2024
Published online:
3
March
2024
The thermodynamic properties of a GaAs circular quantum dot (QD), square QD and triangular QD have been examined in the presence of a piezoelectric polaron and the electromagnetic field. This aims to compare those thermodynamics properties regarded to the shape of the structure. The energies of the system are obtained by solving the Schrödinger equation. Using canonical formalism, these energies are utilized to assess the heat capacity, entropy, free energy magnetization and susceptibility of these various QD systems. It is found that the circular QD ameliorates the properties of the system more than the square QD as well as the square QD more than the triangular QD. This study supports the idea that the type of potential chosen is crucial to better modifying the thermodynamic characteristics of nanostructures. The system maintains the diamagnetic phase in all confinement types. Additionally, it is evident that the magnetic field, electric field, temperature, confinement potential depth, quantum dot (QD) radius and kind of potential all have a significant impact on the thermodynamic properties. The ability to control thermodynamic properties depending on the type of potential opens up new possibilities for nanostructure devices.
Copyright comment Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2024. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
