Ba-Co-Fe-O, Chalcogen, Magnetic properties, Trigonal

• Ba-Co-Fe-O-Zn
• Ba-Co-Fe-Ni-O
• Ba-Co-Fe-Mg-O
• Ba-Co-Fe-Ga-Mg-O
• magnetization
• Moessbauer spectra
• magnetic transitions
• magnetic hysteresis
• hyperfine magnetic field
• transitional
• chalcogen
• alkaline
• oxide
• disordered