Ba-Fe-O, Conductor, Values of moessbauer spectra

• Ba-Cu-Fe-O-Y
• Ba-Co-Fe-O
• Ba-Ca-Cu-Fe-O-Y
• Ba-Fe-La-O
• conductor
• oxide
• alkaline
• chalcogen
• transitional
• tetragonal
• hexagonal
• orthorhombic
• cubic
• trigonal