Disordered, Transitional, Hexagonal, Spectra

• O-Zn
• Fe-O-Sr
• Co-O-Zn
• Co-Na-O
• Ba-Fe-O
• magnetic properties
• Moessbauer spectra
• optical properties
• optical spectra
• values of Moessbauer spectra
• transitional
• disordered
• ternary
• ferromagnetic
• chalcogen