Suppression of Standing Spin Waves in Low-Dimensional Ferromagnets
arXiv:1103.1997 · doi:10.1103/PhysRevLett.107.037202
Abstract
We examine the experimental absence of standing spin wave modes in thin magnetic films, by means of atomistic spin dynamics simulations. Using Co on Cu(001) as a model system, we demonstrate that by increasing the number of layers, the "optical" branches predicted from adiabatic first-principles calculations are strongly suppressed, in agreement with spin-polarized electron energy loss spectroscopy measurements reported in the literature. Our results suggest that a dynamical analysis of the Heisenberg model is sufficient in order to capture the strong damping of the standing modes.
5 pages, 4 figures, Fig. 3 changed, Fig. 4 added
References in corpus (6)
- A method for atomistic spin dynamics simulations: implementation and examples
- Asymmetric Spin-wave Dispersion on Fe(110): Direct Evidence of Dzyaloshinskii--Moriya Interaction
- Chiral asymmetry of the spin-wave spectra in ultrathin magnetic films
- Oscillatory Curie temperature of two-dimensional ferromagnets
- Stable and fast semi-implicit integration of the stochastic Landau-Lifshitz equation
- Magnon softening in a ferromagnetic monolayer: a first-principles spin dynamics study
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- Nonlinear Decay of Quantum Confined Magnons in Itinerant Ferromagnets
- Accelerating the switching of logical units by anisotropy driven magnetization dynamics
- An effective spin model on the honeycomb lattice for the description of magnetic properties in two-dimensional FeGeTe