Table 1.
Characterization of the steplike SdSE in some typical d-electron-based FM, WFM, and AFM materials
| Materials | Magnetic ordering |
TC/TN |
αstep |
MO |
Refs. |
|---|---|---|---|---|---|
| (K) | (μV/K) | (μB) | |||
| Co2TiSn | FM | 355 | −40 | 1.97 | Balke et al.,12, 13 Barth et al.12, 13 |
| MnSi | FM | 29 | 8 | 0.45 | Lamago et al.,14, 15 Hirokane et al.14, 15 |
| Ni | FM | 627 | 10 | ~0.6 | Tang et al.,16, 17 Abadlia et al.16, 17 |
| CaFe4Sb12 | WFM | 50a | ∼15 | 0.5 | Takabatake et al.,18, 19 Schnelle et al.18, 19 |
| Fe2V0.9Cr0.1Al0.9Si0.1 | WFM | 160 | 7 | 0.4 | Tsujii et al.5 |
| MnTe (0.3% Li) | AFM | 307 | 150 | 4.55 | Zheng et al.6 |
| YbMn2Sb2 | AFM | 120 | −15 | 3.6b | Nikiforov et al.,20, 21 Morozkin et al.20, 21 |
Among these, Co2TiSn and CaFe4Sb12 are representatives of a large group of magnetic Heusler and filled skutterudite compounds, respectively, with similar α(T) profiles, see Balke et al.12, 18 and Takabatake et al.12, 18
While a clear indication of ferromagnetic ordering is absent, CaFe4Sb12 shows a shoulder at T ≈ 50 K in magnetic susceptibility due to incipient ferromagnetism.19
In YbMn2Sb2, magnetic moment originates from Mn d bands and divalent Yb ion is nonmagnetic.