J. V. Nguepnang, B. Donfack, C. M. Ekengoue, E. L. Mbieda-Posseu, F. X. Ngagoum Tchamdjeu, W. Nganfo, C. Kenfack-Sadem
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Magnetocaloric Effect and Thermodynamic Properties of Trapped Polarons in 2D Monolayers Transition Metal Dichalcogenides
We investigated the magnetocaloric effect (MCE) and thermodynamic properties of Magnetopolaron embedded in two-dimensional (2D) transition metal dichalcogenides (TMDs) under the canonical ensemble approach. From the results, we found that an increase in magnetic field considerably affects the magnetic moment alignment or brings an additional energy in 2D TMDs monolayers which is responsible for the energy exchange observed. The entropy change or MCE, which is more pronounced in the case of molybdenum and less for tungsten, affects the magnetic state of material. The combined effect of magnetic field and temperature has a great change on the magnetic state of 2D TMDs monolayer materials. The behavior of free energy obtained in the present paper can be used as a characteristic of paramagnetic materials. It comes that all 2D TMDs monolayers studied in the present manuscript present a paramagnetic aspect making them promising candidates for practical applications of magnetic refrigeration.
期刊介绍：
The Journal of Low Temperature Physics publishes original papers and review articles on all areas of low temperature physics and cryogenics, including theoretical and experimental contributions. Subject areas include: Quantum solids, liquids and gases; Superfluidity; Superconductivity; Condensed matter physics; Experimental techniques; The Journal encourages the submission of Rapid Communications and Special Issues.
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