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Structural Stability, Electronic and Magnetic Properties of (Ni $_{1 - x}$ Co $_{x})_{2}$ MnSn Quaternary Heusler Alloys

Laboratoire de Modélisation et Simulation en Sciences des Matériaux, Université Djillali Liabès de Sidi Bel-Abbès, Sidi Bel-Abbès 22000, Algeria

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S. Amari

Laboratoire de Modélisation et Simulation en Sciences des Matériaux, Université Djillali Liabès de Sidi Bel-Abbès, Sidi Bel-Abbès 22000, Algeria

Faculty of Nature and Life Science, Hassiba Benbouali University of Chlef 02000, Algeria

E-mail Address: [email protected]

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K. O. Obodo

Physics Department, University of South Africa, Pretoria, P. O. Box 392, 0003, South Africa

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L. Beldi

Laboratoire de Modélisation et Simulation en Sciences des Matériaux, Université Djillali Liabès de Sidi Bel-Abbès, Sidi Bel-Abbès 22000, Algeria

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H. I. Faraoun

LEPM-URMER, Université Abou Bekr Belkaid de Tlemcen, Tlemcen 13000, Algeria

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, and

B. Bouhafs

Laboratoire de Modélisation et Simulation en Sciences des Matériaux, Université Djillali Liabès de Sidi Bel-Abbès, Sidi Bel-Abbès 22000, Algeria

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https://doi.org/10.1142/S2010324717500102Cited by:7 (Source: Crossref)

Abstract

In this study, we present the calculated structural, electronic and magnetic properties of mixed Heusler alloys (Ni $_{1 - x}$ Co $_{x})_{2}$ MnSn. Using ab initio calculations with the full-potential augmented plane-wave method (FP-LAPW), we evaluated the various possible configurations of Ni and Co sites in the (Ni $_{1 - x}$ Co $_{x})_{2}$ MnSn crystallographic lattice. The lowest energy configuration is determined based on energetic considerations. The calculated equilibrium lattice parameters and magnetic moments are in a reasonable agreement with available experimental data. Of interest, we found that the change of total magnetic moment can be interpreted as a linear variation of the magnetic moment of manganese and cobalt atoms.

Keywords:

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