Chalcogen, Conductor, Non-disordered, Semiconductor, Vibrational spectra

• Ba-Cu-O-Y
• O-Sr-Ti
• Fe-O
• K-Mo-O
• O-Sb
• semiconductor
• chalcogen
• non-disordered
• conductor
• transitional
• tetragonal
• orthorhombic
• monoclinic
• cubic
• trigonal