Alkaline, Antiferromagnet, Conductor, Metal, Transitional, Keimer

• Ba-Cu-O-Y
• As-Ba-Fe
• As-Ba-Fe-K
• Fe-O-Sr
• As-Ca-Fe
• optical properties
• magnetic properties
• phonons
• superconductivity
• superconducting transition temperature
• conductor
• metal
• antiferromagnetic
• alkaline
• transitional
• orthorhombic
• tetragonal
• cubic