Chalcogen, Metal, Kikugawa

• Fe-Se
• Ca-O-Ru
• O-Ru-Sr
• Cu-La-O-Sr
• Ca-O-Ru-Ti
• magnetic properties
• electronic and electrical properties
• superconductivity
• conductivity or resistivity
• superconducting transition temperature
• transitional
• chalcogen
• metal
• non-disordered
• antiferromagnetic
• orthorhombic
• tetragonal