Table 1 Fit parameters. Values for \(\lambda =\frac{J}{N{\left(g{\mu }_{{\rm{B}}}\right)}^{2}}\) and \({D}_{z}=\frac{{K}_{z}}{N{\left(g{\mu }_{{\rm{B}}}\right)}^{2}}\) were calculated from the exchange interaction J and the out-of-plane anisotropy constant Kz given in the respective references.
From: Efficient spin excitation via ultrafast damping-like torques in antiferromagnets
Parameter | Unit | HoMnO3 | YMnO3 |
|---|---|---|---|
TN | [K] | 69.2(7) | 74.7(1) |
TSR | [K] | 33.5(2) | – |
λ | [T2 cm3 J−1] | 70.846 | 71.125 |
Dz | [T2 cm3 J−1] | 11.046 | 13.925 |
Dy(T) | [T2 cm3 J−1] | \(\kappa \left({T}_{{\rm{SR}}}-T\right)\) | 0.0251(1) |
κ | [T2 cm3 J−1 K−1] | 0.0093(6) | 0 |
\(\Delta \cdot {\left(g{\mu }_{{\rm{B}}}\right)}^{2}\) | [T2 cm3 J−1] | 0.0354(9) | 0 |
\({\mathcal{J}}\) | [T2 cm3 J−1] | 117.2 + ∣Dy∣ | 120.6 |
\({\mathcal{D}}\) | [T2 cm3 J−1] | \(\Delta {M}_{0}^{2}+| {D}_{y}|\) | 0.0251(1) |
\(A=\sqrt{{\mathcal{J}}/{\mathcal{D}}}\) | [1] | Fig. 3e | 69.3 |
