Ba-Cu-O-Y, Electronic and electrical properties, Tetrahedron 4-vertex

• Ba-Cu-O-Y-Zn
• Ba-Ca-Cu-O-Y
• Ba-Cu-La-O-Y
• Ba-Cu-Ni-O-Y
• conductivity or resistivity
• electrical resistivity
• Hall effect
• transitional
• alkaline
• chalcogen
• rare earth
• disordered
• orthorhombic
• tetragonal