Alkaline, Chalcogen, Transitional, Ba-Fe-O, Isomer shift

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