# Role of spin-orbit interaction in the ultrafast demagnetization of small iron clusters

@article{Stamenova2016RoleOS,
title={Role of spin-orbit interaction in the ultrafast demagnetization of small iron clusters},
author={Maria Stamenova and Jacopo Simoni and Stefano Sanvito},
journal={Physical Review B},
year={2016},
volume={94},
pages={014423}
}
• Published 3 November 2015
• Physics
• Physical Review B
The ultra-fast demagnetization of small iron clusters initiated by an intense optical excitation is studied with time-dependent spin density functional theory (TDSDFT). In particular we investigate the effect of the spin-orbit interaction on the onset of the demagnetization process. It is found that the initial rate of coherent spin loss is proportional to the square of the atomic spin-orbit coupling constant, $\lambda$. A simplified quantum spin model comprising spin-orbit interaction and a…
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