2015, Alkaline, Quaternary, Fe-O

• Ba-Fe-O-Sm
• Ba-Fe-O-Y
• Ba-Fe-Nd-O
• Ba-Fe-Gd-O
• Ba-Fe-La-O
• structural properties
• refractive index
• optical properties
• values of refractive index
• hardness
• transitional
• alkaline
• quaternary
• chalcogen
• cubic
• orthorhombic
• tetragonal
• hexagonal
• monoclinic