Achavalite, Chalcogen

• Fe-Se
• Cu-Fe-Se
• Fe-Sb-Se
• Fe-Ga-Se
• Fe-Se-Tl
• superconductivity
• magnetic properties
• electronic and electrical properties
• superconducting transition temperature
• phase transitions
• selenide
• chalcogen
• achavalite
• transitional
• binary
• orthorhombic
• hexagonal
• tetragonal
• cubic
• monoclinic