Alkaline, Disordered, Quaternary, Elasticity, Orthorhombic

• Ba-Cu-O-Y
• Fe-Mg-O-Si
• Cu-La-O-Sr
• Ba-K-N-O
• Ba-Na-Nb-O
• elastic stiffness coefficient
• longitudinal-mode elastic coefficient
• elastic compliance
• quaternary
• disordered
• alkaline
• chalcogen
• transitional