Chalcogen, Columbite, Disordered, Oxide, Orthorhombic

• Fe-Nb-O
• Fe-Mn-Nb-O-Ta
• Fe-Mn-Nb-O
• Fe-Mn-Nb-O-Ta-Ti-W
• Fe-Mg-Mn-Nb-O-Ta-Ti-W
• structural properties
• thermal and thermodynamic properties
• magnetic properties
• magnetic susceptibility
• magnetization
• disordered
• columbite
• chalcogen
• transitional
• oxide