Alkali, Chalcogen, Carvajal

• Nb-O-P-Rb-Ti
• O-P-Rb-Ti
• Nb-O-P-Rb-Ti-Yb
• O-P-Rb-Ti-Yb
• Na-O-P-Y
• electronic and electrical properties
• conductivity or resistivity
• ionic conductivity
• optical properties
• structural properties
• chalcogen
• alkali
• transitional
• pnictogen
• nonmetal
• orthorhombic
• monoclinic
• cubic
• trigonal