Chalcogen, Conductor, Metal, Transitional, Fe-K-Se, Tetragonal

• Fe-K-Se-Tl
• Fe-K-Se-Te
• Fe-K-Mn-Se
• Fe-K-Se-Zn
• magnetic properties
• superconductivity
• optical properties
• superconducting transition temperature
• values of superconducting transition temperature
• conductor
• metal
• alkali
• chalcogen
• selenide