First-principles calculations to investigate electronic, magnetic and half-metallic ferromagnetic properties of full-Heusler Mn2OsSn

Belkharroubi, Fadila and Bourdim, Mokhtar and Maizia, Ahmed and Belmiloud, Nawal and Khelfaoui, Friha and Smahi, Zakaria and Boudia, Keltouma and Benchehima, Miloud and Azzi, Saliha and Ameri, Mohamed and Al-Douri, Yarub and Abu Odeh, Ali (2023) First-principles calculations to investigate electronic, magnetic and half-metallic ferromagnetic properties of full-Heusler Mn2OsSn. Philosophical Magazine, 103 (11). pp. 1090-1114. ISSN 1478-6435, DOI https://doi.org/10.1080/14786435.2023.2180682.

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Abstract

The structural, electrical, magnetic, and elastic characteristics of the Mn2OsSn full-Heusler compound have all been studied using the full potential linearised augmented plane (FP-LAPW) method. The study's exchange and correlation potentials are calculated using the generalised gradient approach (GGA) developed by Burke, Perdew, and Ernzerhof; the GGA with the Tran-Blaha-modified Becke-Johnson approximations; and the GGA with the correlated Hubbard parameter (GGA +U). Our calculations show that the formation energy of the compound is negative for the two-type structure, which means the crystal may persist indefinitely. Our chemical has a convex hull distance at 0 K for cubic regular and inverse-type structures, indicating that it will likely be synthesised via equilibrium processing. The electronic band structures, densities of states, and 100 spin-polarisation at the Fermi level in the typical cubic AlCu2Mn-type structure show Mn2OsSn in its complete Heusler ferromagnetic state has a half-metallic feature with an indirect band gap in the minority spin. Alternatively, in the CuHg2Ti-type ferromagnetic state, with its inverse cubic structure, this material exhibits metallic ferromagnetic behaviour with a polarisation of 96,325. The half metallicity of the AlCu2Mn-type combination is preserved at 1 GPa of hydrostatic pressure. Thus, Mn2OsSn, with the appropriate correction option for the Hubbard-Coulomb parameter U, will be a promising contender for spintronic applications.

Item Type: Article
Funders: UNSPECIFIED
Uncontrolled Keywords: Full-Heusler; structural stability; half-metallic; magnetic properties; DFT
Subjects: Q Science > QC Physics
Divisions: Deputy Vice Chancellor (Research & Innovation) Office > Nanotechnology & Catalysis Research Centre
Depositing User: Ms Zaharah Ramly
Date Deposited: 17 May 2024 00:03
Last Modified: 17 May 2024 00:03
URI: http://eprints.um.edu.my/id/eprint/38573

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