Université de Fribourg

Magnetic exchange interactions in Mn doped ZnSnAs₂ chalcopyrite

Bouhani-Benziane, H. ; Sahnoun, Omar ; Sahnoun, Mohammed ; Driz, Mohamed ; Daul, Claude A.

In: Journal of Magnetism and Magnetic Materials, 2015, vol. 396, p. 345–349

Accurate ab initio full-potential augmented plane wave (FP-LAPW) electronic calculations within generalized gradient approximation have been performed for Mn doped ZnSnAs₂ chalcopyrites, focusing on their electronic and magnetic properties as a function of the geometry related to low Mn-impurity concentration and the spin magnetic alignment (i.e., ferromagnetic vs antiferromagnetic). As...

Université de Fribourg

Ab initio study of structural, electronic and thermodynamic properties of tungstate double perovskites Ba₂MWO₆ (M = Mg, Ni, Zn)

Sahnoun, Omar ; Bouhani-Benziane, H. ; Sahnoun, Mohammed ; Driz, Mohamed ; Daul, Claude A.

In: Computational Materials Science, 2013, vol. 77, p. 316–321

The structural and electronic properties of the double perovskite Ba₂MWO₆ with M = Mg, Ni, Zn have been studied using the full-potential linearized augmented plane wave (FP-LAPW) method by employing both the local density approximation (LDA) and the generalized gradient approximation (GGA), which are based on exchange–correlation energy optimization to calculate the total energy. Also we...