Alkaline, Electrical resistivity, Pmmm

• Ba-Cu-O-Y
• Ba-Cu-Eu-O
• Ba-Cu-O-Pr
• Ba-Cu-Nd-O
• Ba-Cu-Gd-O
• chalcogen
• alkaline
• transitional
• rare earth
• oxide
• orthorhombic
• tetragonal
• monoclinic
• cubic