Complex metallic alloy
Complex metallic alloys (CMAs) or complex intermetallics (CIMs) are intermetallic compounds characterized by the following structural features: large unit cells, comprising some tens up to thousands of atoms, the presence of well-defined atom clusters, frequently of icosahedral point group symmetry, the occurrence of inherent disorder in the ideal structure. == Overview == Complex metallic alloys is an umbrella term for intermetallic compounds with a relatively large unit cell.