Materials Project GGA structure of hcp Gd, unmodified. Measured: 7.55 μB/atom, μ0Ms ≈ 2.66 T at 0 K, Tc = 293 K. Reference anchor for the Gd magnet premise check.
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Gd magnetic moments
Converged Mulliken magnetic moments as a magCIF (atomsite_moment) for visualization
Gadolinium's big moment doesn't make a permanent magnet: a literature check
Gd has the largest saturation magnetization of any common element, but only below 293 K. In Fe and Co compounds it points the wrong way, and it adds almost no anisotropy. Sources, measured values, CIFs, and what it would take to test it ourselves.
/materials/structure/relax
/materials/thermo/ehull
/magnetism/curie-temperature