Square pyramid 5-vertex, Structural properties, Tetragonal, Transitional

• Cu-La-O-Sr
• Ba-Ca-Cu-O-Tl
• Ba-Cu-O-Y
• Ba-Cu-Fe-O-Y
• Ba-Ca-Cu-La-O
• compressibility
• mechanical properties
• thermal and thermodynamic properties
• thermal expansion
• transitional
• rare earth
• disordered
• lanthanoid