Yoshikura

• Ba-Co-Fe-O-Sr-Y
• Ba-Co-Fe-Nd-O-Sr
• Ba-Co-Fe-O-Pr-Sr
• Ba-Co-Fe-Gd-O-Sr
• Ba-Co-Fe-O-Sm-Sr
• structural properties
• rare earth
• chalcogen
• alkaline
• multinary
• transitional