(Sr0.5La0.5)4TlNi2O9 tI38 139

• La-Ni-O-Sr-Tl
• Nd-Ni-O-Sr-Tl
• Ni-O-Pr-Sr-Tl
• Ni-O-Sm-Sr-Tl
• Eu-Ni-O-Sr-Tl
• structural properties
• rare earth
• chalcogen
• high-tc superconductor
• cuprate
• lanthanoid
• tetragonal