Alkali, Chalcogen, Ferroelectric, Elasticity, Orthorhombic

• H-K-N-O-S
• O-P-Rb-Ti
• K-Li-Na-Nb-O-Sb
• K-Li-Na-Nb-O-Ta
• K-O-P-Ti
• elastic stiffness coefficient
• elastic compliance
• higher-order elastic coefficients
• ferroelectric
• chalcogen
• alkali
• nonmetal
• non-disordered