As-Eu-Fe, Eu-x polyhedra, Lanthanoid

• As-Eu-Fe-K
• As-Eu-Fe-P
• As-Co-Eu-Fe
• As-Eu-Fe-K-Ni
• magnetic properties
• thermal and thermodynamic properties
• electronic and electrical properties
• superconductivity
• conductivity or resistivity
• pnictogen
• rare earth
• metalloid
• lanthanoid
• transitional
• tetragonal
• orthorhombic
• cubic