Cluster glass, Electronic and electrical properties, Trigonal

• Ba-La-Mn-O
• Co-La-O-Sr
• La-Mn-O-Pb
• Fe-Lu-O
• Co-La-Ni-O
• conductivity or resistivity
• electrical resistivity
• metal or nonmetal character
• temperature for metal-nonmetal transition
• permittivity (dielectric constant)
• oxide
• transitional
• cluster glass
• chalcogen
• conductor