Structural, elastic, electronic and magnetic properties of Ni2MnSb, Ni2MnSn and Ni2MnSb0.5Sn0.5 magnetic shape memory alloys

Authors

  • O. Benguerine Laboratory of Catalysis and Reactive Systems, Physics Department, Djillali Liabès University, Sidi Bel Abbès
  • Z. Nabi Laboratory of Catalysis and Reactive Systems, Physics Department, Djillali Liabès University, Sidi Bel Abbès
  • B. Benichou Department of Electronics, Faculty of Technology, Hassiba Benbouali University, Chlef
  • B. Bouabdallah Physics Department, Djillali Liabès University, Sidi Bel Abbès
  • H. Bouchenafa Physics Department, Faculty of Sciences Exact and Informatics, Hassiba Benbouali University, Chlef
  • M. Maachou Laboratory of Catalysis and Reactive Systems, Physics Department, Djillali Liabès University, Sidi Bel Abbès
  • R. Ahuja Condensed Matter Theory Group, Department of physics and Astronomy, Uppsala University, Box 516, 75120, Uppsala

DOI:

https://doi.org/10.31349/RevMexFis.66.121

Keywords:

Ab initio study, MSMA alloys, elastic constants, quaternary Heusler alloy.

Abstract

Structural, elastic, electronic and magnetic properties of the Nickel-based magnetic shape memory alloys (MSMA) Ni2MnSb, Ni2MnSn and Ni2MnSb0.5Sn0.5, are investigated using the full-potential linearized plane wave plus local orbital method (FP-LAPW+lo). With Perdew-Burke-Ernzerhof (PBE) exchange-correlation, generalized gradient approximation (GGA) is used to describe the electronic exchange correlations energy. Equilibrium lattice constant, bulk modulus, and its pressure derivative are calculated and compared with available data. Using the total energy versus strain in the framework of the FP-LAPW+lo approach, we compute the elastic constants of the studied compounds in their austenite structure. Good agreement is found with other calculations both for Ni2MnSb and Ni2MnSn. Magnetic moments agree well with available results.

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Published

2020-03-01

How to Cite

[1]
O. Benguerine, “Structural, elastic, electronic and magnetic properties of Ni2MnSb, Ni2MnSn and Ni2MnSb0.5Sn0.5 magnetic shape memory alloys”, Rev. Mex. Fís., vol. 66, no. 2 Mar-Apr, pp. 121–126, Mar. 2020.