Antiferroelectric, Chalcogen, Disordered, Oxide, Phonons, Trigonal

• Bi-Fe-O
• Bi-Na-O-Ti
• Bi-Dy-Na-O-Ti
• Bi-Fe-O-Y
• Bi-Er-Na-O-Ti
• Raman spectra
• wavenumber of optical phonon
• infrared spectra
• wavenumber of transverse optical phonon
• wavenumber of longitudinal optical phonon
• ferroelectric
• antiferroelectric
• disordered
• chalcogen
• oxide