Bi-Fe-O, Conductor, Optical properties, Trigonal

• Bi-Fe-La-O
• Bi-Fe-O-Sr
• Ba-Bi-Fe-O
• Bi-Fe-Nd-O
• phonons
• Raman spectra
• optical spectra
• wavenumber of optical phonon
• optical absorption
• oxide
• conductor
• chalcogen
• disordered
• pnictogen