Chalcogen, Conductor, Disordered, Longitudinal sound velocity

• Ba-Cu-O-Y
• O-U
• La-Mn-O-Sr
• Co-Fe-O-Zn
• Ba-Cu-Eu-O
• conductor
• disordered
• chalcogen
• semiconductor
• transitional
• cubic
• orthorhombic
• tetragonal
• trigonal
• monoclinic