Table 1 Dynamic spin-phonon model properties and static spin exchange parameters.
From: Coherent helicity-dependent spin-phonon oscillations in the ferromagnetic van der Waals crystal CrI3
Quantity or Parameter | Variable Label | Value |
|---|---|---|
Phonon mass | M | \(6.3\times {10}^{-25}\,{{{{{\rm{kg}}}}}}\) |
Phonon frequency | Ω | \(3.87\,{{{{{\rm{THz}}}}}}\) |
Spin-phonon coupling | ϕ | \(1.98\,{\AA }^{-1}\) |
Dynamically modulated Heisenberg interaction | \({\tilde{J}}_{H1,{{{{{\bf{rr}}}}}}^{{{\prime} }}}\) | \({J}_{H1}\left(1+\phi \left({X}_{{{{{{\bf{r}}}}}}}+{X}_{{{{{{{\bf{r}}}}}}}^{{{{\prime} }}}}\right)/2\right)\) |
Nearest neighbor Heisenberg | JH1 | \(-2.4\,{{{{{\rm{meV}}}}}}\) |
Second-nearest neighbor Heisenberg | JH2 | \(-0.1\,{{{{{\rm{meV}}}}}}\) |
Third-nearest neighbor Heisenberg | JH3 | \(0.1\,{{{{{\rm{meV}}}}}}\) |
Nearest-neighbor Kitaev | JK | \(0.9\,{{{{{\rm{meV}}}}}}\) |
Second-nearest neighbor DM | JD | \(-0.2\,{{{{{\rm{meV}}}}}}\) |
Single-ion anisotropy | JA | \(-0.2\,{{{{{\rm{meV}}}}}}\) |
Inter-plane nearest neighbor Heisenberg | JHc | \(-0.59\,{{{{{\rm{meV}}}}}}\) |
