Chalcogen, Conductor, Non-disordered, Vibrational spectra

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