Chalcogen, Fe-O, Moessbauer spectra, Orthorhombic

• Bi-Fe-O-Ti
• Fe-La-O
• Ca-Fe-Mn-O
• Ca-Fe-O
• Fe-O-Sr
• values of Moessbauer spectra
• isomer shift
• quadrupole splitting
• hyperfine magnetic field
• chalcogen
• transitional
• oxide
• disordered
• antiferromagnetic