Chalcogen, Rare earth, Cu-Sc, Structural properties

• Ba-Cu-O-Sc
• Ba-Cu-Dy-O
• Ba-Cu-Er-O
• Ba-Ce-Cu-O
• Ba-Cu-Eu-O
• rare earth
• chalcogen
• transitional
• alkaline
• quaternary
• trigonal
• tetragonal
• orthorhombic
• monoclinic
• hexagonal