Fe-Se-Te, Se-x polyhedra

• Co-Fe-Se-Te
• Fe-Ni-Se-Te
• Fe-Se-Te-Zn
• Fe-S-Se-Te
• superconductivity
• magnetic properties
• electronic and electrical properties
• conductivity or resistivity
• superconducting transition temperature
• metalloid
• chalcogen
• transitional
• selenide
• telluride
• tetragonal
• orthorhombic
• hexagonal
• cubic
• triclinic