Micromagnetic modeling of laser-induced magnetization dynamics using the Landau-Lifshitz-Bloch equation

3 pages, 3 figures.We present a dynamic approach to micromagnetics based on the Landau-Lifshitz-Bloch equation and Langevin dynamics. This type of modeling will be necessary at high temperatures when the magnetization length is not conserved, especially close to the Curie temperature. We model the laser-induced magnetization dynamics with various laser pulse fluences and show that the results are consistent with both experiments and atomistic modeling. Our results show different recovery rates depending on the final demagnetized state.This work was supported by Seagate Technology. The support of the Royal Society travel grant is also gratefully acknowledged.Peer reviewe