Tag: frustration
Propelling ferrimagnetic domain walls by dynamical frustration
ModelWe consider a 1D classical spin model, ∣S∣ = 1, with the following Hamiltonian$$H= J\sum\limits_{i}\left({S}_{i}^{x}{S}_{i+1}^{x}+{S}_{i}^{y}{S}_{i+1}^{y}-\Delta {S}_{i}^{z}{S}_{i+1}^{z}\right)\\ +\sum\limits_{i}\left(\frac{{\delta }_{2}}{2}{{S}_{i}^{z}}^{2}+\frac{{\delta }_{4}}{4}{{S}_{i}^{z}}^{4}-{g}_{i}{B}_{z}(t){S}_{i}^{z}\right),$$ (2)…
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