Chalcogen, Oxide, Sound velocity

• Ba-Cu-O-Y
• Ba-Cu-Gd-O
• Cu-La-O-Sr
• Ba-Ca-Cu-O-Y
• Bi-Ca-Cu-O-Sr
• longitudinal sound velocity
• values of sound velocity
• transverse sound velocity
• chalcogen
• oxide
• transitional
• disordered
• alkaline
• orthorhombic
• cubic
• tetragonal
• monoclinic
• trigonal