Used primarily in the production of specialty glasses and optical materials due to its ability to absorb infrared radiation. Employed in the manufacturing of rare earth magnets, particularly samarium-cobalt types, which exhibit strong magnetic properties and high resistance to demagnetization. Serves as a catalyst in certain organic synthesis reactions, enhancing reaction efficiency. Applied in solid oxide fuel cells as a dopant material to improve ionic conductivity. Also utilized in research settings for the development of luminescent compounds and ceramic materials with unique electronic properties.