Chalcogen, Transitional, Kikkawa

• N-Nb-O
• Cu-Fe-O
• Cu-La-O-Sr
• N-Nb-O-Si
• La-Ni-O
• structural properties
• magnetic properties
• electronic and electrical properties
• superconductivity
• conductivity or resistivity
• chalcogen
• transitional
• disordered
• conductor
• oxide
• cubic
• trigonal
• orthorhombic
• tetragonal
• hexagonal