Alkaline, Disordered, Pnictogen, As-Ba-Co-Fe, Tetragonal

• As-Ba-Co-Fe-K
• As-Ba-Co-Cu-Fe
• As-Ba-Co-Fe-Sr
• superconductivity
• superconducting transition temperature
• electronic and electrical properties
• magnetic properties
• optical properties
• metalloid
• disordered
• arsenide
• alkaline
• pnictogen