Prediction of the magnetocaloric behaviors of the Kekulene structure for the magnetic refrigeration

被引:21
作者
Arejdal, M. [1 ]
机构
[1] Mohammed V Univ, Fac Sci, Lab Condensed Matter & Interdisciplinary Sci LaMC, Av Ibn Batouta,BP 1014, Rabat, Morocco
关键词
Magnetocaloric effect; Magnetic refrigeration; Kekulene structure; Hamiltonian; Spins; Magnetization-demagnetization; GD; NANOPARTICLES; CLUSTERS; HO; DY;
D O I
10.1016/j.rinp.2020.103342
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
In the last half a century or so, nanomaterials have received considerable attention thanks to their energyefficient applications. Keeping this in mind and within the framework of my contribution to this scientific area, I firstly determined the magnetic properties and magneto-caloric performance in a Kekulene structure with the spin moment (S = 2) as a model of the nanomaterial. Secondly, I examined the critical behavior of the Kekulene structure with the aim of establishing the magneto-caloric effect around the Curie temperature (T-C). Thirdly, I used the modified Arrott plot to provide a detailed analysis of the magnetic phase transition. Lastly, before establishing the relative cooling power and the cooling capacity at Delta H = 0-5 T, I studied changes that both the magnetic entropy and the adiabatic temperature underwent. By and large, it seemed from the results I reached in the analysis of the studied system in this article that the system here is one of the most potential candidates for the magnetic refrigeration.
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页数:5
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