P31m

• Al-Ba
• K-O-V
• O-Rb-V
• Al-C-H-N-O-S
• O-Tl-V
• structural properties
• electronic and electrical properties
• optical properties
• permittivity (dielectric constant)
• refractive index
• non-disordered
• chalcogen
• transitional
• ternary
• oxide
• trigonal