Synthesis and properties of pyrrhotite ash based cubical α-Fe2O3 nanoparticlesBadreddine Hatimi, Jihan Mouldar, Abdelwahed Loudiki, Meryem Bensemlali, Layla El Gaini, Abdelowahed Hajjaji, Moulay Abderrahim El Mhammedi and Mina BakasseEur. Phys. J. Appl. Phys., 97 (2022) 90DOI: https://doi.org/10.1051/epjap/2022220073