Chalcogen, Transitional, Nb-Ru

• Ce-Cu-Eu-Nb-O-Ru-Sr
• Bi-Nb-O-Ru-Sr
• Ce-Cu-Gd-Nb-O-Ru-Sr
• Na-Nb-O-Ru-Sr
• Ce-Cu-Gd-Nb-Nd-O-Ru-Sr
• thermal and thermodynamic properties
• electronic and electrical properties
• structural properties
• magnetic properties
• conductivity or resistivity
• transitional
• chalcogen
• alkaline
• disordered
• oxide
• tetragonal
• orthorhombic
• trigonal
• cubic
• monoclinic