Alkali, Chalcogen, Disordered, Transitional, Fe-K-Se, Tetragonal

• Fe-K-S-Se
• Cu-Fe-K-Se
• Fe-K-Mn-Se
• Fe-K-Se-Tl
• superconductivity
• magnetic properties
• optical properties
• structural properties
• superconducting transition temperature
• selenide
• disordered
• alkali
• chalcogen
• transitional