Kiehl

• Ba-Cu-O-Tl
• Ba-Ca-Cu-O-Tl
• Ba-Ca-Cu-Hg-O
• Ba-Cu-Hg-O
• conductivity or resistivity
• thermoelectric power
• electronic and electrical properties
• thermal and thermodynamic properties
• superconductivity
• transitional
• alkaline
• chalcogen
• conductor
• non-disordered
• tetragonal