Alkali, Chalcogen, Elasticity, Tetragonal

• H-K-O-P
• H-Li-N-O-S
• Ba-Na-Nb-O
• B-Li-O
• H-O-P-Rb
• elastic stiffness coefficient
• elastic compliance
• pressure derivative of elastic stiffness coefficient
• alkali
• chalcogen
• nonmetal
• disordered
• piezoelectric