Alkali, Alkaline, Metalloid, As-Ba-Fe-K

• As-Ba-Co-Fe-K
• As-Ba-Cu-Fe-K
• As-Ba-Fe-K-Ni
• As-Ba-Fe-K-Zn
• superconductivity
• superconducting transition temperature
• magnetic properties
• electronic and electrical properties
• values of superconducting transition temperature
• pnictogen
• alkali
• alkaline
• metalloid
• transitional
• tetragonal
• orthorhombic
• cubic