Cubic, Elastic moduli, Er-x polyhedra

• Er-H
• Er-Mg
• Er-N
• Bi-Er-O
• Er-O-Ti
• isothermal bulk modulus
• pressure derivative of isothermal bulk modulus
• Young modulus
• shear modulus
• Poisson ratio
• rare earth
• lanthanoid
• disordered
• transitional