Chalcogen, Conductor, Semiconductor, Transitional, Values of sound velocity

• Ba-Cu-O-Y
• Cu-La-O-Sr
• Ca-La-Mn-O
• Cd-Se
• Fe-O
• transitional
• chalcogen
• semiconductor
• conductor
• disordered
• cubic
• orthorhombic
• tetragonal
• monoclinic
• trigonal