Farhi

• Li-O-Rb-S
• Ge-K-O
• O-Pb-Ti
• Ni-O
• Ba-O-Ti
• mechanical properties
• elasticity
• optical properties
• refractive index
• elastic stiffness coefficient
• chalcogen
• alkali
• ferroelectric
• nonmetal
• quaternary
• monoclinic
• orthorhombic
• cubic
• trigonal