Electronic and electrical properties, Fe-Nb, Trigonal

• Fe-Nb-O-Pb
• Ba-Fe-Nb-O-Si
• Bi-Co-Fe-Nb-O
• Bi-Fe-Nb-O-Sr
• Fe-Li-Nb-O
• permittivity (dielectric constant)
• electrical conductivity
• ferroelectric transitions
• effective mass
• conductivity or resistivity
• transitional
• chalcogen
• ferroelectric
• ferromagnetic
• antiferromagnetic