Chalcogen, Conductor, Oxide, Fe-O, Phonons, Tetragonal

• Ba-Cu-Fe-O-Y
• Cu-Fe-O
• As-Fe-La-O
• As-F-Fe-Nd-O
• Ba-Cu-Fe-O-Sm
• wavenumber of optical phonon
• vibrational spectra
• Raman spectra
• infrared spectra
• phonon density of states
• transitional
• oxide
• conductor
• chalcogen
• disordered