Used in high-temperature superconductors, particularly in the production of yttrium barium copper oxide (YBCO) materials where lanthanum acts as a stabilizer and enhances structural properties. The alloy powder serves as a precursor in synthesizing advanced ceramic superconductors that operate at liquid nitrogen temperatures. It is also employed in research for developing improved superconducting wires and tapes with higher current-carrying capacity. Additionally, the powder finds use in specialized catalysts and electronic materials due to the synergistic effects of copper and lanthanum in promoting oxidation-reduction reactions and thermal stability.