Alkali, As-Ba-Fe-K, Tetragonal

• As-Ba-Co-Fe-K
• As-Ba-Cu-Fe-K
• As-Ba-Fe-K-Ni
• As-Ba-Fe-K-Zn
• superconductivity
• electronic and electrical properties
• superconducting transition temperature
• magnetic properties
• conductivity or resistivity
• pnictogen
• alkali
• alkaline
• metalloid
• transitional