LaFeAsO oS16 67

• As-Fe-La-O
• As-Fe-O-Sm
• As-Ce-Fe-O
• As-Fe-O-Pr
• As-Fe-Nd-O
• magnetic properties
• electronic and electrical properties
• conductivity or resistivity
• structural transitions
• phase transitions
• transitional
• pnictogen
• metalloid
• rare earth
• lanthanoid
• orthorhombic
• monoclinic