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

physica status solidi (RRL) - Rapid Research Letters, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 20, 2024

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

Language: Английский

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Critical behavior of Ni2MnGa ferromagnetic Heusler alloys

Applied Physics A, Journal Year: 2024, Volume and Issue: 130(12)

Published: Nov. 23, 2024

Language: Английский

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Compensation temperatures and hysteresis loops in a kekulene with alternate multilayer

Applied Physics A, Journal Year: 2025, Volume and Issue: 131(4)

Published: March 15, 2025

Language: Английский

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Magnetic properties of a ferrimagnetic core–shell nanoparticle based on Monte Carlo method

Applied Physics A, Journal Year: 2025, Volume and Issue: 131(5)

Published: April 9, 2025

Language: Английский

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Magnetic properties and magnetocaloric effect of Co2VGa Heusler alloy: A theoretical study

Physica A Statistical Mechanics and its Applications, Journal Year: 2025, Volume and Issue: unknown, P. 130626 - 130626

Published: May 1, 2025

Language: Английский

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Structural, Electronic, and Magnetic Properties of Ferrimagnetic Double‐Perovskite Ba₂GdRuO₆: Density Functional Theory and Monte Carlo Simulation

physica status solidi (RRL) - Rapid Research Letters, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 15, 2024

In this study, the structural, electronic, and magnetic properties of double‐perovskite Ba 2 GdRuO 6 are investigated using both first‐principles calculations Monte Carlo simulations. Spin–orbit coupling is incorporated to accurately capture interactions between 4 d f electrons, which play a crucial role in determining material's electronic properties. The showed that ferrimagnetic structure, with an optimal lattice parameter 8.41 Å, most stable configuration. Additionally, density states band structure reveal semiconducting nature at Fermi level, total moment . To further investigate system, simulations performed study effect crystal fields on transition temperatures. results several critical phenomena, including compensation temperature, endpoints, first‐ second‐order phase transitions.

Language: Английский

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Probing the structural, electronic, magnetic, and optical properties of Zr(Fe/Mn)Al half-Heusler alloys for optoelectronic applications: A first-principles investigation

Physics Letters A, Journal Year: 2024, Volume and Issue: unknown, P. 130175 - 130175

Published: Dec. 1, 2024

Language: Английский

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