Ba-Cu-Er-O, Chalcogen, Electronic and electrical properties

• Ba-Cu-Er-Ni-O
• Ba-Cu-Er-Fe-O
• Ba-Cu-Er-O-Zn
• Ba-Co-Cu-Er-O
• conductivity or resistivity
• electrical resistivity
• electrical conductivity
• effective mass
• lanthanoid
• rare earth
• chalcogen
• alkaline
• transitional
• orthorhombic
• tetragonal
• monoclinic
• cubic