Chalcogen, Quaternary, Rare earth, Jcrgae

• Ba-Cu-O-Y
• Ce-O-P-Ru
• Ba-Cu-Nd-O
• B-Ca-Gd-O
• Ga-La-O-Si
• structural properties
• optical properties
• electronic and electrical properties
• phase transitions
• magnetic properties
• chalcogen
• rare earth
• quaternary
• lanthanoid
• transitional
• orthorhombic
• monoclinic
• tetragonal
• trigonal
• cubic