First-principle investigation of half-metallic ferromagnetism in octahedrally bonded Cr-doped rock-salt SrS, SrSe, and SrTeBendouma Doumi, Allel Mokaddem, Lahouari Temimi, Nadir Beldjoudi, Mohammed Elkeurti, Fethallah Dahmane, Adlane Sayede, Abdelkader Tadjer and Mustapha Ishak-BoushakiEur. Phys. J. B, 88 4 (2015) 93DOI: https://doi.org/10.1140/epjb/e2015-50746-9