Ba7(Ti0.5Nb0.5)4Nb2O21 hR102 166

• Ba-Nb-O-Ti
• Ba-Nb-O-Sc-Ti
• Ba-O-Sr-Ta-Zr
• Ba-Nb-O-Ti-Tm
• Ba-In-Nb-O-Ti
• structural properties
• alkaline
• perovskite
• chalcogen
• transitional
• trigonal