Electrical current - electric potential difference diagram

• Bi-Ca-Fe-O
• Nb-Se
• Ga-Te-Tl
• Fe-O-Sr
• Ba-Cu-O-Y
• chalcogen
• transitional
• conductor
• disordered
• non-disordered
• orthorhombic
• tetragonal
• monoclinic
• hexagonal
• trigonal