Fe-O-Sr, Spectra, Trigonal

• Fe-La-O-Sr
• Fe-La-Mn-O-Sr
• Co-Fe-La-O-Sr
• Bi-Fe-O-Sr
• Fe-O-Pr-Sr
• magnetic properties
• Moessbauer spectra
• isomer shift
• values of Moessbauer spectra
• optical properties
• transitional
• chalcogen
• alkaline
• disordered
• oxide