Er-Fe, Er-x polyhedra, Thermal and thermodynamic properties, Trigonal

• Er-Fe-H
• C-Er-Fe
• Er-Fe-I
• C-Er-Fe-Ru
• Er-Fe-Mn-O
• thermal expansion
• enthalpy or energy
• Debye or Einstein temperature
• Seebeck coefficient
• thermoelectric power
• lanthanoid
• transitional
• rare earth
• disordered