Ba-Ni, Chalcogen, Transitional, Orthorhombic

• Ba-Cu-Ni-O-Y
• Ba-Ni-O-Y
• Ba-Er-Ni-O
• Ba-Cu-Er-Ni-O
• Ba-Ho-Ni-O
• thermal and thermodynamic properties
• magnetic properties
• electronic and electrical properties
• structural properties
• superconductivity
• transitional
• alkaline
• chalcogen
• oxide
• rare earth