Non-disordered, Pnma, Se-Sn

• Se-Sn-Tl
• Na-Se-Sn
• F-Se-Sn-Sr
• Ba-F-Se-Sn
• structural properties
• electronic and electrical properties
• Moessbauer spectra
• magnetic properties
• thermoelectric power
• non-disordered
• chalcogen
• selenide
• binary
• disordered
• orthorhombic