Nd11Co89

Nd₁₁Co₈₉ is a rare-earth transition metal intermetallic compound combining neodymium and cobalt in a fixed stoichiometric ratio. This material belongs to the family of hard magnetic intermetallics and is primarily of research and specialized industrial interest, particularly in permanent magnet applications where rare-earth elements provide strong magnetic coupling. The neodymium-cobalt system has been explored historically as an alternative to other rare-earth permanent magnets, though modern Nd₂Fe₁₄B magnets have become more dominant in commercial applications; Nd₁₁Co₈₉ remains relevant in niche applications requiring specific magnetic properties, high-temperature stability, or corrosion resistance that cobalt-based compounds can provide.