Chalcogen, Non-disordered, Cmme

• Fe-Se
• As-Fe-La-O
• As-Fe-Nd-O
• As-Ce-Fe-O
• As-Fe-O-Pr
• structural properties
• magnetic properties
• phase transitions
• structural transitions
• temperature for structural transition
• non-disordered
• chalcogen
• transitional
• antiferromagnetic
• metal
• orthorhombic