| url | form | unit | notes | value | source | material |
|---|---|---|---|---|---|---|
| https://link.aps.org/doi/10.1103/PhysRev.132.1092 | single crystal | μB/atom | 7 μB 4f spin plus conduction-electron polarization | 7.55 | Nigh, Legvold, Spedding, Phys. Rev. 132, 1092 (1963) | Gd |
| https://arxiv.org/abs/1209.5617 | single crystal | T | Above Fe (2.15 T) and Fe65Co35 (2.45 T), but only at cryogenic temperature | 2.66 | Nigh et al. 1963, as cited by Scheunert et al. 2012 | Gd |
| https://link.aps.org/doi/10.1103/PhysRev.132.1092 | single crystal | K | Paramagnetic at typical operating temperatures | 293 | Nigh et al. 1963 | Gd |
| https://arxiv.org/abs/1209.5617 | 50 nm nanogranular film on SiO2 | T | ±0.26 T; coercivity 160 Oe (soft) | 2.61 | Scheunert, Hendren, Ward, Bowman, APL 101, 142407 (2012) | Gd |
| https://arxiv.org/abs/1807.09708 | single crystal (floating zone) | μB/f.u. | ≈ 5×1.8 (Co) − 7.3 (Gd); YCo5 has no opposing RE moment | 1.7 | Patrick et al., J. Phys.: Condens. Matter 30, 32LT01 (2018) | GdCo5 |
| https://arxiv.org/abs/1807.09708 | single crystal (floating zone) | T | Measured 44–48 T; Gd–Co exchange field ~235 T. Antiparallel alignment cannot be undone by practical fields | 46 | Patrick et al. 2018 | GdCo5 |
| https://arxiv.org/abs/1807.09708 | single crystal (floating zone) | K | Approximate (~1000 K) | 1000 | Patrick et al. 2018 | GdCo5 |
| https://www.sciencedirect.com/science/article/abs/pii/0304885381901311 | polycrystal | MJ/m³ | Reported 4.1e7 erg/cm³; anisotropy comes from the Co sublattice | 4.1 | Magnetic properties of some gadolinium–cobalt intermetallic compounds, JMMM (1981) | GdCo5 |
| https://www.sciencedirect.com/science/article/abs/pii/0304885381901311 | polycrystal | MJ/m³ | Reported 8.1e6 erg/cm³ | 0.81 | JMMM (1981), Gd–Co intermetallics | GdCo3 |
| https://www.sciencedirect.com/science/article/abs/pii/0304885381901311 | polycrystal | MJ/m³ | Reported 1.3e7 erg/cm³ | 1.3 | JMMM (1981), Gd–Co intermetallics | Gd2Co7 |
| https://www.sciencedirect.com/science/article/abs/pii/0304885381901311 | polycrystal | MJ/m³ | Reported −2.7e6 erg/cm³ (easy plane); sign flips with slight Gd excess | -0.27 | JMMM (1981), Gd–Co intermetallics | Gd2Co17 |
| https://arxiv.org/abs/1903.11442 | arc-melted polycrystal (as-cast) | x | Net moment cancels for 1 ≤ x ≤ 3; coercivity peaks near x ≈ 1 at 10 K. 950 °C/10 day anneal did not improve phase purity; Gd2(Co,Ni)7 lamellae for x ≤ 2.5 | Tedstone et al., Phys. Rev. Materials 3, 034409 (2019) | GdCo5-xNix |
Measured intrinsic and extrinsic magnetic properties of Gd and Gd–Fe/Co compounds from the literature, plus Fe65Co35 and Nd2Fe14B for comparison. One row per property per source. Compiled for the Gd premise check; values are as reported, not recomputed.