Chalcogen, Lanthanoid, Rare earth, Cpbhaj

• Bi-Fe-Gd-O
• Ba-Nb-O-Y-Yb
• Ba-O-Ta-Y-Yb
• La-Mn-O-Sr
• Bi-Fe-La-O
• structural properties
• electronic and electrical properties
• permittivity (dielectric constant)
• crystal electric field
• phase transitions
• chalcogen
• lanthanoid
• rare earth
• transitional
• quaternary
• orthorhombic
• cubic
• trigonal
• hexagonal
• tetragonal