Ba-Fe-O, Chalcogen, Moessbauer spectra, Tetragonal

• Ba-Cu-Fe-O-Y
• Ba-Cu-Fe-Lu-O
• Ba-Fe-O-Y
• Ba-Fe-La-O
• Ba-Cu-Fe-Nd-O
• values of Moessbauer spectra
• isomer shift
• quadrupole splitting
• hyperfine magnetic field
• chalcogen
• transitional
• alkaline
• oxide
• rare earth