Kao, Orthorhombic, Transitional

• As-Ba-Fe-K
• Cr-O-Sr-Y
• Ca-Co-Eu-O
• Co-Eu-O
• O-Re-Tl
• magnetic properties
• thermal and thermodynamic properties
• structural properties
• optical properties
• superconductivity
• transitional
• chalcogen
• alkaline
• conductor
• oxide