Alkali, Birefringent, Oxide, Transitional, Li-Nb-O

• K-Li-Nb-O
• Li-Mg-Nb-O
• electronic and electrical properties
• structural properties
• optical properties
• phonons
• permittivity (dielectric constant)
• oxide
• birefringent
• alkali
• chalcogen
• transitional
• trigonal
• tetragonal
• orthorhombic