Alkaline, Chalcogen, Sound velocity

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