Alkaline, Chalcogen, Transitional, Orthorhombic, Sound velocity

• Ba-Cu-O-Y
• Ca-La-Mn-O
• Ba-Ca-Cu-O-Y
• Ca-O-Ti
• Cu-La-O-Sr
• longitudinal sound velocity
• transverse sound velocity
• values of sound velocity
• chalcogen
• alkaline
• transitional
• oxide
• disordered