Publications Repository - Gdańsk University of Technology

The ferromagnetic superconductor Y9Co7 was chemically doped to yield the solid solution Y9Co7-xPdx for 0 < x < 0.4. The lattice parameter a does not depend on x, whereas c increases with increasing Pd content up to x ¼ 0.2, the palladium solubility limit. The transition from ferromagnetism (TC ¼ 4.25 K) to superconductivity (Tsc ¼ 2.4 K) was observed only for the parent Y9Co7 compound. For the lowest tested Pd doping level (x ¼ 0.05), ferromagnetism is enhanced strongly (TC ¼ 9.35 K) and superconductivity is not seen above 1.8 K. The Curie temperature rapidly increases from 4.25 K to about 10 K for a Pd concentration of x ¼ 0.1 and remains almost unchanged for Y9Co6.8Pd0.2.

Authors

• Judyta Strychalska-Nowak link open in new tab ,
• Joe D. Thompson,
• Robert J. Cava,
• prof. dr hab. inż. Tomasz Klimczuk link open in new tab