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<p>In this work, the magnetic and thermal properties of a parabolic quantum dot (QD) under a magneto-acoustic polaron are studied. The thermodynamic properties such as heat capacity, entropy, free energy, magnetization and magnetic susceptibility have been obtained via a canonical partition function. The outcome shows that the system is completely diamagnetic. It is also clearly shown that, heat capacity rises with increasing the QD radius, whereas it is a decayed one of the magnetic field (MF) and the depth of confinement potential (CP). The free energy is enhanced with CP depth and MF. Moreover, we observed that the magnetization decreases with increasing MF and QD radius; magnetic susceptibility exhibits the phase-transition with the threshold CP depth <InlineEquation ID="IEq1"> <EquationSource Format="TEX">\(V_{0T}\)</EquationSource> <EquationSource Format="MATHML"><math> <msub> <mi>V</mi> <mrow> <mn>0</mn> <mi>T</mi> </mrow> </msub> </math></EquationSource> </InlineEquation>. The possibility to control the thermodynamic properties through the system parameters opens up applications for nanotechnology devices.</p>

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Thermodynamics properties of parabolic potential quantum dot in presence of magneto-acoustic polaron

  • 期刊论文

  • 发表日期：

    2025年12月8日

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  • F. Manfouo,
  • S. C. N. Nguemasson,
  • G. B. Tanekou,
  • A. J. Fotue

摘要

In this work, the magnetic and thermal properties of a parabolic quantum dot (QD) under a magneto-acoustic polaron are studied. The thermodynamic properties such as heat capacity, entropy, free energy, magnetization and magnetic susceptibility have been obtained via a canonical partition function. The outcome shows that the system is completely diamagnetic. It is also clearly shown that, heat capacity rises with increasing the QD radius, whereas it is a decayed one of the magnetic field (MF) and the depth of confinement potential (CP). The free energy is enhanced with CP depth and MF. Moreover, we observed that the magnetization decreases with increasing MF and QD radius; magnetic susceptibility exhibits the phase-transition with the threshold CP depth \(V_{0T}\) V 0 T . The possibility to control the thermodynamic properties through the system parameters opens up applications for nanotechnology devices.