%0 Journal Article %T M-Type Strontium Hexaferrite Nanoparticles Prepared by Sol-Gel Auto-combustion Method: The Role of Co Substitution in Structural, Morphological, and Magnetic Properties %A Ebrahim Roohani %A Arabi, Hadi %A Reza Sarhaddi %A Saeedeh Sudkhah %J Journal of Superconductivity and Novel Magnetism %@ 1557-1939 %D 2017