Alkaline, Quaternary, Transitional, Khim

• Ba-Cu-O-Y
• As-Ba-Fe-K
• As-Co-Fe-Sr
• Ba-Cu-Gd-O
• Ba-Cu-O-Yb
• superconductivity
• superconducting transition temperature
• values of superconducting transition temperature
• thermoelectric power
• thermal and thermodynamic properties
• quaternary
• metal
• alkaline
• conductor
• transitional
• orthorhombic
• tetragonal