Octahedron 6-vertex, Structural transitions, Tetragonal

• Ba-O-Ti
• Mg-Nb-O-Pb-Ti
• O-Sr-Ti
• Ba-Cu-La-O
• La-Mn-O-Sr
• temperature for structural transition
• pressure for structural transition
• pressure derivative of transition temperature
• transitional
• chalcogen
• oxide
• disordered
• non-disordered