Alkaline, Chalcogen, Longitudinal sound velocity

• Ba-Cu-O-Y
• La-Mn-O-Sr
• Mn-Nd-O-Sr
• Ba-Cu-Eu-O
• Ba-Ca-Cu-O-Y
• alkaline
• chalcogen
• transitional
• oxide
• disordered
• orthorhombic
• cubic
• tetragonal
• trigonal
• hexagonal