Bi-Fe-O, Chalcogen, Conductor, Disordered, Semiconductor, Phonons

• Bi-Fe-Nd-O
• Bi-Fe-La-O
• Bi-Ca-Fe-O-Ti
• Bi-Fe-O-Sm
• Raman spectra
• wavenumber of optical phonon
• infrared spectra
• wavenumber of longitudinal optical phonon
• energy of optical phonon
• oxide
• conductor
• chalcogen
• disordered
• pnictogen
• trigonal
• orthorhombic
• triclinic
• tetragonal
• cubic