Ba-Fe-O, Chalcogen, Moessbauer spectra

• Ba-Cu-Fe-O-Y
• Ba-Fe-La-O
• Ba-F-Fe-O
• Ba-Co-Fe-O
• values of Moessbauer spectra
• isomer shift
• quadrupole splitting
• hyperfine magnetic field
• transitional
• chalcogen
• alkaline
• oxide
• disordered
• hexagonal
• tetragonal
• orthorhombic
• trigonal
• cubic