Alkali, Chalcogen, Nonmetal, Structural transitions, Trigonal

• Bi-Na-O-Ti
• Li-O-Ta
• N-O-Rb
• N-Na-O
• Li-Nb-O
• temperature for structural transition
• pressure for structural transition
• pressure derivative of transition temperature
• chalcogen
• nonmetal
• alkali
• transitional
• disordered