Wikipedia (Zirconium is a lustrous, greyish-white, soft, ductile and malleable metal that is solid at room temperature, though it is hard and brittle at lesser purities.)
Pauli paramagnet, but have a reference only when Zr substituted with rare earth. V. Babizhetskyy et al. / Journal of Alloys and Compounds 661 (2016) 490e494
Pauli paramagnet PHYSICAL REVIEW B VOLUME 27, NUMBER 11 1 JUNE 1983, Electronic structure, superconductivity, and magnetism in the C 15 compounds ZrV2, ZrFe2, and ZrCo2, B.M. Klein, W. E. Pickett, D. A. Papaconstantopoulos, and L. L. Boyer
The hexagonal modifications of the Laves phases TiCr2, ZrCr2 and HfCr2 all exhibit Pauli paramagnetism with nearly the same susceptibility values (approx 4 × 10-4 e.m.u./mole).
Measurements on the cubic modification of TiCr2 yield a slightly higher Pauli paramagnetic susceptibility (5 × 10-4 e.m.u./mole).
The compounds TiCo2 and ZrCo2 form a single phase pseudo-binary system having the cubic Laves phase structure. The compounds exhibit Pauli paramagnetism with virtually constant
susceptibility (1.44 to 1.53 × 10-3 e.m.u./mole) over the entire composition range.
The YFe2?YCo2 system is also single phase with the cubic Laves structure. These alloys are ferromagnetic over the entire composition range. As Co is substituted for Fe in YFe2 the saturation moment
increases, passing through a maximum at the composition YFe1.4Co0.6. The striking similarity to the behavior of alloys of elemental Co and Fe is pointed out. Reference, ResearchGate
In 1968, Kai et al. found that ZrFe2 is a typical ferromagnet, with a Curie temperature of 630 K and a magnetization of 88 emu/g. PHYSICAL REVIEW B VOLUME 27, NUMBER 11 1 JUNE 1983, Electronic structure, superconductivity, and magnetism in the C 15 compounds ZrV2, ZrFe2, and ZrCo2, B.M. Klein, W. E. Pickett, D. A. Papaconstantopoulos, and L. L. Boyer