Chalcogen, Disordered, Hexagonal, Khan

• Ba-Co-Fe-O
• Ba-Co-Fe-Mn-O-Zr
• Co-Fe-O-Sr
• Co-Fe-O-Sr-Zn-Zr
• Ba-Co-Fe-Mn-Ni-O-Zr
• magnetic properties
• electronic and electrical properties
• structural properties
• permittivity (dielectric constant)
• magnetic hysteresis
• disordered
• chalcogen
• oxide
• transitional
• alkaline