Chalcogen, Conductor, Disordered, Cu, Cubic, Phonons

• Cu-Fe-Ni-O
• Cu-Fe-Ni-O-Zn
• Ba-Cu-O
• Ca-Cu-O-Ti
• Ba-Cu-Fe-La-O
• infrared spectra
• wavenumber of optical phonon
• Raman spectra
• vibrational spectra
• energy of optical phonon
• transitional
• disordered
• conductor
• chalcogen
• semiconductor