Ba-Cu-O-Y, Thermal expansion, Y-x polyhedra

• Ba-Cu-La-O-Y
• Ba-Co-Cu-O-Y
• Ba-Cu-F-O-Y
• Ba-Cu-Gd-O-Y
• linear thermal expansion coefficient
• temperature derivative of cell parameter
• thermal cell parameters change
• transitional
• alkaline
• chalcogen
• rare earth
• disordered
• orthorhombic
• tetragonal
• cubic
• monoclinic
• trigonal