Simultaneous Effects of Temperature and Pressure on the Entropy and the Specific Heat of a Three-Dimensional Quantum Wire: Tsallis Formalism

Khordad, R.; Firoozi, Ar.; Sedehi, H. R. Rastegar

doi:10.1007/s10909-020-02536-w

Cited by 14 publications

(2 citation statements)

References 40 publications

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“…This property of spin can then enable the realization of qubit (two-level system). Some semiconductors such as InAs are characterized by a strong spin-orbit interaction, and they have played an important role in spintronic devices because they can control the degree of spin freedom of the electron [36][37][38][39][40][41]. Many researchers have defined entropy differently in recent years, many works have been carried out on the thermodynamic quantities of nanostructures, and this is due to their large technological applications [42][43][44][45].…”

Section: Introductionmentioning

confidence: 99%

Cumulative Effects of Laser and Spin–Orbit Interaction (SOI) on the Thermal Properties of Quantum Pseudo-dot

et al. 2021

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In this work, we investigate the cumulative effects of laser and spin-orbit interaction (SOI) on the thermodynamic properties of a quantum pseudo-dot using the Tsallis formalism, through the evaluation of the energy to derive some thermodynamic properties at the accessible states. From the results obtained, we found that contrary to the SOI, a laser field is a suitable external field to reduce the rate of entropy (disorder) in a quantum system, and thus, this allows control on the spin alignment and increasing the number of accessible states hence stabilizing our system, simultaneously reducing the rate of entropy due to the great effect of the laser field. Therefore, the combined effects of laser field and SOI are an important parameter to enhance the thermodynamic quantities and more define the spin alignment of quantum system.

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Section: Introductionmentioning

confidence: 99%

Cumulative Effects of Laser and Spin–Orbit Interaction (SOI) on the Thermal Properties of Quantum Pseudo-dot

et al. 2021

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“…Parto et al utilized the same approach for solving the Schrödinger equation to calculate the energy eigenvalues of different QDs and compared their results with analytical solutions [31]. Recently, we have used the FDTD method to study low temperature behaviour of entropy and specific heat of a three dimensional quantum wire with and without considering temperature and pressure [40,41]. Also, we have used the FDTD method to calculate scattering spectra of a multilayer nanoshell [42].…”

Section: Introductionmentioning

confidence: 99%

Q-BOR–FDTD method for solving Schrödinger equation for rotationally symmetric nanostructures with hydrogenic impurity

Firoozi¹,

Mohammadi²,

Khordad³

et al. 2022

Phys. Scr.

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An efficient method inspired by the traditional body of revolution finite-difference time-domain (BOR-FDTD) method is developed to solve the Schrodinger equation for rotationally symmetric problems. As test cases, spherical, cylindrical, cone-like quantum dots, harmonic oscillator, and spherical quantum dot with hydrogenic impurity are investigated to check the efficiency of the proposed method which we coin as Quantum BOR-FDTD (Q-BOR-FDTD) method. The obtained results are analysed and compared to the 3-D FDTD method, and the analytical solutions. Q-BOR-FDTD method proves to be very accurate and time and memory efficient by reducing a three-dimensional problem to a two-dimensional one, therefore one can employ very fine meshes to get very precise results. Moreover, it can be exploited to solve problems including hydrogenic impurities which is not an easy task in the traditional FDTD calculation due to singularity problem. To demonstrate its accuracy, we consider spherical and cone-like core-shell QD with hydrogenic impurity. Comparison with analytical solutions confirms that Q-BOR–FDTD method is very efficient and accurate for solving Schrodinger equation for problems with hydrogenic impurity

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Tuning the Noise‐Driven Magnetocaloric Effect in Doped GaAs Quantum Dot in View of Tsallis Entropy

Bhakti,

Datta,

Ghosh

2024

ChemistrySelect

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Current inspection strives to perform a detailed elaboration of the Tsallis entropy‐based magnetocaloric effect (MCE) of GaAs quantum dot (QD) doped with Gaussian impurity and under applied Gaussian white noise. Noise takes additive and multiplicative pathways for its entry to the doped QD. MCE has been found to decrease following the enhancement of temperature. The enquiry manifests magnetic field‐induced confinement and consequent decline in the disorder of the system during the gradual variation of several physical parameters. However, harnessing the extent of above confinement involves extremely sensitive and delicate control over the resultant influence of the particular physical parameter undergoing change, its range of magnitude, application of noise and its mode of inclusion. Importantly, MCE has been found to maximize only during the change in the strength of the dopant potential under multiplicative noise. And, on most occasions, multiplicative noise profoundly raises the MCE over its value under the state devoid of noise and under additive noise.

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Simultaneous Effects of Temperature and Pressure on the Entropy and the Specific Heat of a Three-Dimensional Quantum Wire: Tsallis Formalism

Cited by 14 publications

References 40 publications

Cumulative Effects of Laser and Spin–Orbit Interaction (SOI) on the Thermal Properties of Quantum Pseudo-dot

Cumulative Effects of Laser and Spin–Orbit Interaction (SOI) on the Thermal Properties of Quantum Pseudo-dot

Q-BOR–FDTD method for solving Schrödinger equation for rotationally symmetric nanostructures with hydrogenic impurity

Tuning the Noise‐Driven Magnetocaloric Effect in Doped GaAs Quantum Dot in View of Tsallis Entropy

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