1984, Structural transitions

• S-Ta
• Nb-Se
• H-Na-O-Se
• Si
• H-N-O-Se
• temperature for structural transition
• pressure for structural transition
• pressure derivative of transition temperature
• transitional
• non-disordered
• chalcogen
• binary
• metal
• cubic
• orthorhombic
• tetragonal
• monoclinic
• hexagonal