First‐principles calculations to investigate structural stabilities, mechanical and optoelectronic properties of NbCoSn and NbFeSb half‐Heusler compounds

[1 ]Magnetic Materials Laboratory (LMM), Faculty of Exact Sciences Djillali Liabes University of Sidi Bel‐Abbes Sidi Bel‐Abbes Algeria

[2 ]Department of Physics, Faculty of Exact Sciences and Informatics Hassiba Benbouali University of Chlef Chlef Algeria

[3 ]Department of Exact Sciences Higher Teacher Training School of Bou Saada Bou Saada Algeria