Non-disordered, Transitional, Spectra, Trigonal

• Bi-Fe-O
• Fe-O
• Fe-O-Ti
• Ni-O
• Fe-Sm
• optical properties
• phonons
• magnetic properties
• Moessbauer spectra
• optical spectra
• transitional
• non-disordered
• chalcogen
• ternary
• disordered