Ba-Cu-Hg-O, Energy band structure, Hg-x polyhedra

• Ba-Ca-Cu-Hg-O
• Ba-Ca-Cu-Hg-O-Tl
• electron energy band structure
• Fermi surface
• Fermi energy
• Brillouin zone
• energy at Fermi level
• chalcogen
• alkaline
• conductor
• cuprate
• disordered
• tetragonal