All 3-vertex, Isothermal linear compressibility

• Ba-Cu-O-Y
• O-Pb
• Cu-La-O-Sr
• Al-N-Ti
• Ba-Cu-O-Sr-Y
• non-disordered
• chalcogen
• transitional
• disordered
• conductor
• orthorhombic
• hexagonal
• tetragonal
• monoclinic
• cubic