Fe-O, Optics, Oxide, Trigonal

• Bi-Fe-O
• Fe-O-Ti
• Fe-La-O-Sr
• Bi-Fe-La-O
• phonons
• optical spectra
• Raman spectra
• wavenumber of optical phonon
• X-ray absorption near-edge spectra
• oxide
• chalcogen
• transitional
• disordered
• antiferromagnetic