Monte Carlo study of the magnetic and magnetocaloric properties of an edge-decorated graphene-like nanoparticle

Liu, Zhen-yu; Wang, Wei; Li, Bo-chen

doi:10.1007/s10853-024-10024-9

J Mater Sci

2024

DOI: 10.1007/s10853-024-10024-9

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Monte Carlo study of the magnetic and magnetocaloric properties of an edge-decorated graphene-like nanoparticle

Zhen-yu Liu,

Wei Wang,

Bo-chen Li

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Magnetocaloric Effect in the Full‐Heusler Alloy Ga₂MnNi for Magnetic Refrigeration: A First‐Principles and Monte Carlo Study

Kerrai,

Zaim,

Kerouad

2024

Physica Rapid Research Ltrs

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In this manuscript, the magnetic and magnetocaloric properties of the MnNi compound are investigated using Monte Carlo simulations and first‐principles calculations. Initially, the electronic, structural, and magnetic characteristics of the alloy are explored. The findings indicate that the ferromagnetic state in the Fm (No. 216) structure, with an optimal lattice parameter of 5.88 Å, was the most stable state compared to nonmagnetic (NM) and antiferromagnetic (AFM) states. Phonon dispersion studies confirm the alloy's dynamic stability, while the density of states reveal metallic behavior at the Fermi level. The total magnetic moment is calculated to be 3.48 . Additionally, exchange interactions are computed for Monte Carlo simulations, predicting a Curie temperature () of 331 K, consistent with experimental measurements ( = 330 K). Furthermore, the alloy exhibited a relative cooling power (RCP) of 1133.16 J kg−1 and a magnetocaloric effect of 19.65 J kg−1 K−1 at an applied magnetic field of 5 T. These results indicate that the MnNi full‐Heusler alloy is a potential option for use in magnetic refrigeration applications.

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Magnetocaloric Effect in the Full‐Heusler Alloy Ga₂MnNi for Magnetic Refrigeration: A First‐Principles and Monte Carlo Study

Kerrai,

Zaim,

Kerouad

2024

Physica Rapid Research Ltrs

View full text Add to dashboard Cite

show abstract

Hysteresis behavior and magnetocaloric effect in MnNiGa2 full-Heusler alloy

Kerrai,

Saadi,

Jalal

et al. 2024

Solid State Communications

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Dynamic magnetic properties and magnetocaloric effect of a nanotube encapsulated with X₃₆

Xing,

Wang,

et al. 2024

Phys. Scr.

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Using Monte Carlo simulation, the dynamic magnetic properties and magnetocaloric effect of a mixed-spin (3/2, 2) single-walled nanotube encapsulated with X36 was studied, where X denotes the magnetic atom. The effects of intrinsic parameters on dynamic order parameters, magnetic susceptibility, internal energy, and specific heat were considered. The phase diagrams were obtained. The results indicate that the critical temperature can be increased by decreasing the absolute values of the anisotropies (Da, Db), increasing the exchange couplings (|Jab|, Jbb), and decreasing the amplitude h0 and the period τ of the external magnetic field. And under the influence of these parameters, the magnetocaloric effect is generated.

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Monte Carlo study of the magnetic and magnetocaloric properties of an edge-decorated graphene-like nanoparticle

Cited by 3 publications

References 64 publications

Magnetocaloric Effect in the Full‐Heusler Alloy Ga₂MnNi for Magnetic Refrigeration: A First‐Principles and Monte Carlo Study

Magnetocaloric Effect in the Full‐Heusler Alloy Ga₂MnNi for Magnetic Refrigeration: A First‐Principles and Monte Carlo Study

Hysteresis behavior and magnetocaloric effect in MnNiGa2 full-Heusler alloy

Dynamic magnetic properties and magnetocaloric effect of a nanotube encapsulated with X₃₆

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Monte Carlo study of the magnetic and magnetocaloric properties of an edge-decorated graphene-like nanoparticle

Cited by 3 publications

References 64 publications

Magnetocaloric Effect in the Full‐Heusler Alloy Ga2MnNi for Magnetic Refrigeration: A First‐Principles and Monte Carlo Study

Magnetocaloric Effect in the Full‐Heusler Alloy Ga2MnNi for Magnetic Refrigeration: A First‐Principles and Monte Carlo Study

Hysteresis behavior and magnetocaloric effect in MnNiGa2 full-Heusler alloy

Dynamic magnetic properties and magnetocaloric effect of a nanotube encapsulated with X36

Contact Info

Product

Resources

About

Magnetocaloric Effect in the Full‐Heusler Alloy Ga₂MnNi for Magnetic Refrigeration: A First‐Principles and Monte Carlo Study

Magnetocaloric Effect in the Full‐Heusler Alloy Ga₂MnNi for Magnetic Refrigeration: A First‐Principles and Monte Carlo Study

Dynamic magnetic properties and magnetocaloric effect of a nanotube encapsulated with X₃₆