Chalcogen, Disordered, Transitional, Transverse sound velocity

• Ba-Cu-O-Y
• Ba-Cu-Eu-O
• O-W-Zn
• La-Mn-O-Sr
• O-Sr-Ti
• disordered
• transitional
• chalcogen
• oxide
• conductor
• cubic
• orthorhombic
• tetragonal
• monoclinic
• trigonal