Alkaline, Oxide, Transitional, Pressure for structural transition

• Ba-Cu-O-Y
• O-Sr-Ti
• Ca-O-Ru
• Ba-Cu-La-O
• O-Sr-W
• transitional
• alkaline
• chalcogen
• oxide
• non-disordered
• orthorhombic
• tetragonal
• cubic
• monoclinic
• trigonal