Structural parameters, electronic structure, Magnetic, and mechanical properties of half-metallic Full-Heusler compound Cr2VAs: A density functional theory study

被引:9
作者
Belhadj, M. E. A. [1 ]
Berrahal, M. [2 ]
Bentouaf, A. [3 ,4 ]
Belmekki, M. [1 ]
Meliani, M. E. A. Elaissaoui El [5 ,6 ]
Benaddi, F. [8 ]
Rached, A. Azzouz [7 ]
机构
[1] Univ Sci & Technol Oran Mohamed Boudiaf USTO MB, Fac Phys, Dept Technol Mat, BP 1505, Oran 31000, Algeria
[2] Ecole Normale Super Oran, Dept Phys, Oran 31000, Algeria
[3] Djillali Liabes Univ Sidi Bel Abbes, Lab Phys Chem Adv Mat, Sidi Bel Abbes 22000, Algeria
[4] Dr Moulay Tahar Univ Saida, Fac Technol, Commun Technol Lab, Saida 20000, Algeria
[5] Ahmed Draia Univ, Fac Sci & Technol, Saharan Nat Resources Lab, Adrar, Algeria
[6] Univ Sci & Technol Oran Mohamed Boudiaf, Fac Chem, Dept Mat Engn, Bir El Djir, Algeria
[7] Hassiba Benbouali Univ Chlef, Fac Exact Sci & Informat, Dept Phys, Chlef, Algeria
[8] Univ Tisssemsilet, Fac Sci, Bougara, Algeria
关键词
Heusler alloys; Magnetic moment. Ab initio calculation; GGA plus U. Spintronics. mBj; TEMPERATURE; ALLOY;
D O I
10.1016/j.comptc.2024.114526
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
This study employs the full -potential linearized plane wave method (FP-LAPW) within the generalized gradient scheme GGA, incorporating the Hubbard correlation parameter U. The application of this approach enables a comprehensive exploration of the structural parameters, electronic structure, magnetic properties, and elastic properties of the Cr2VAs full-Heusler alloy through advanced computer simulations. The analysis of structural properties unequivocally reveals the stability of the Cr2VAs system in ferromagnetic states. Employing GGA, our examination of the electronic structure indicates semi -metallic properties, showcasing a direct gap along the (Gamma-Gamma) direction. In contrast, within the GGA + U approach, Cr2VAs adopts a nearly half -metallic character in the same direction. Furthermore, under the mBj scheme, the compound exhibits a distinctive half -metallic nature with an indirect band gap of 0.31 eV along the (Gamma-X) direction. The results from elastic studies lead to the conclusive finding that the investigated material demonstrates mechanical stability, supported by a Debye temperature of 276.534 K. The computed outcomes underscore the promising potential of this ternary alloy in the field of Spintronics.
引用
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页数:7
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