Ba-Cu-Nd-O, Debye or einstein temperature, Nd-x polyhedra

• Ba-Ca-Cu-Nd-O-Ti
• Ba-Cu-Nd-O-Sr
• Ba-Ca-Cu-Nd-O
• Ba-Cu-Nd-O-Y
• lanthanoid
• rare earth
• alkaline
• chalcogen
• transitional
• tetragonal
• orthorhombic
• cubic
• hexagonal
• monoclinic