R3c

• Bi-Fe-O
• Li-Nb-O
• Bi-Fe-La-O
• Bi-Fe-O-Sm
• Bi-Fe-Mn-O
• structural properties
• electronic and electrical properties
• magnetic properties
• optical properties
• permittivity (dielectric constant)
• chalcogen
• transitional
• disordered
• oxide
• pnictogen
• trigonal
• orthorhombic
• cubic