Electronic and electrical properties, Multiferroic, Trigonal

• Fe-Nb-O-Pb
• Bi-Cr-Fe-O
• Cu-Fe-O
• Cr-Cu-O
• Ca-Mn-O
• permittivity (dielectric constant)
• electric polarization
• ferroelectric transitions
• conductivity or resistivity
• electrical conductivity
• multiferroic
• transitional
• chalcogen
• antiferromagnetic
• ferroelectric