Conductor, Metal, Rare earth, Temperature derivative of resistivity

• Ba-Cu-O-Y
• Cu-La-O-Sr
• Gd-Y
• Ca-La-Mn-O
• Co-La-O-Sr
• metal
• conductor
• rare earth
• transitional
• disordered
• orthorhombic
• tetragonal
• hexagonal
• cubic
• trigonal