Tl(In0.5Si0.5)2S4 oP56 62

• Cs-Ga-Se-Sn
• In-S-Si-Tl
• Ge-In-S-Tl
• Al-Ge-S-Tl
• Ga-S-Si-Tl
• structural properties
• optical properties
• phonons
• wavenumber of optical phonon
• Raman spectra
• quaternary
• disordered
• chalcogen
• alkali
• orthorhombic