Alkali, Chalcogen, Ferroelectric, Nonmetal, Structural transitions

• K-Na-Nb-O
• H-Li-N-O-S
• Bi-Na-O-Ti
• H-K-O-P
• K-Li-O-S
• temperature for structural transition
• pressure for structural transition
• pressure derivative of transition temperature
• nonmetal
• alkali
• chalcogen
• ferroelectric
• disordered
• tetragonal
• orthorhombic
• monoclinic
• trigonal
• cubic