Er-x polyhedra, Monoclinic, Ternary, Transitional

• Co-Er-Si
• Er-O-Ta
• Er-S-Sc
• Au-Er-Te
• Er-Fe-Si
• thermal and thermodynamic properties
• structural properties
• electronic and electrical properties
• mechanical properties
• phase transitions
• transitional
• lanthanoid
• rare earth
• ternary