Antiferromagnetic, Metalloid, Buechner

• Cu-Ge-O
• B-Fe-O-Tb
• As-Ca-Co-Fe
• As-Ba-Fe-K
• As-Ca-Fe
• magnetic properties
• thermal and thermodynamic properties
• electronic and electrical properties
• phase transitions
• structural transitions
• transitional
• metalloid
• antiferromagnetic
• non-disordered
• metal
• orthorhombic
• tetragonal
• trigonal
• monoclinic