Alkali, Chalcogen, Disordered, Quaternary, Elasticity, Orthorhombic

• C-K-N-S
• Ba-K-N-O
• O-P-Rb-Ti
• K-O-P-Ti
• Ba-Na-Nb-O
• elastic stiffness coefficient
• pressure derivative of elastic stiffness coefficient
• higher-order elastic coefficients
• elastic compliance
• disordered
• nonmetal
• alkali
• chalcogen
• quaternary