Comparative study of thermodynamics properties of GaAs circular, square and triangular quantum dot under piezoelectric polaron and electromagnetic field

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...

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Bibliographic Details
Published in:European physical journal plus 2024-03, Vol.139 (3), p.208, Article 208
Main Authors: Manfouo, F., Silenou, M., Fobasso, M. F. C., Donfack, B., Fotue, A. J.
Format: Article
Language:English
Subjects:
Acoustics
Applied and Technical Physics
Atomic
Comparative studies
Complex Systems
Condensed Matter Physics
Confinement
Diamagnetism
Electric fields
Electromagnetic fields
Electromagnetism
Electrons
Energy
Entropy
Free energy
Gallium arsenide
Heat
Magnetic fields
Mathematical and Computational Physics
Molecular
Nanostructure
Nanotechnology
Nanotechnology devices
Optical and Plasma Physics
Physical properties
Physics
Physics and Astronomy
Piezoelectricity
Polarons
Quantum dots
Regular Article
Schrodinger equation
Theoretical
Thermodynamic properties
Thermodynamics
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Summary: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.
ISSN:2190-5444
2190-5444
DOI:10.1140/epjp/s13360-024-05007-3