Phase transition, band structure, optical spectra and magnetic moment of MnO magnetic material upon compressionN. Bouarissa, A. Gueddim, H. Algarni and M. Ajmal KhanEur. Phys. J. B, 94 10 (2021) 215DOI: https://doi.org/10.1140/epjb/s10051-021-00223-7