Sr0.5AlTe2 tI16 140

• In-K-Se-Sn
• Ba-Ga-Te
• Ga-Sr-Te
• Al-Ba-Te
• Ba-In-Te
• structural properties
• optical properties
• Raman spectra
• phonons
• electronic energy gap
• tripolyhedral
• chalcogen
• disordered
• metalloid
• tetragonal