Open AccessStructural, elastic, electronic and magnetic properties of Ni2MnSb, Ni2MnSn and Ni2MnSb0.5Sn0.5 magnetic shape memory alloys
Author(s) -
O. Benguerine,
Z. Nabi,
Boucif Benichou,
Badra Bouabdallah,
H. Bouchenafa,
M. Maachou,
Rajeev Ahuja
Publication year - 2020
Publication title -
revista mexicana de física/revista mexicana de física
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.181
H-Index - 25
eISSN - 2683-2224
pISSN - 0035-001X
DOI - 10.31349/revmexfis.66.121
Subject(s) - condensed matter physics , magnetic moment , lattice constant , electronic structure , materials science , plane wave , elastic modulus , total energy , austenite , physics , thermodynamics , quantum mechanics , diffraction , metallurgy , psychology , displacement (psychology) , psychotherapist , microstructure
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.