Antic fidancev, Transitional

• B-Fe-Nd-O
• Ba-Er-O-Zn
• Ba-Cu-Er-O
• Er-F-Li-Y
• As-Bi-Eu-O-V
• electronic and electrical properties
• crystal electric field
• crystal electric field parameter
• optical properties
• structural properties
• transitional
• rare earth
• lanthanoid
• chalcogen
• quaternary
• tetragonal
• orthorhombic
• trigonal
• monoclinic
• hexagonal