Chalcogen, Kikugawa

• Fe-Se
• Ca-O-Ru
• O-Ru-Sr
• Er-O-S-Te
• O-S-Te-Tm
• magnetic properties
• optical properties
• Curie-Weiss paramagnetism
• electronic and electrical properties
• magnetic susceptibility
• chalcogen
• non-disordered
• oxide
• transitional
• disordered
• orthorhombic
• monoclinic
• triclinic
• tetragonal
• trigonal