Based on numerical simulations, we demonstrate thermally induced magnetic switching in synthetic ferrimagnets composed of multilayers of rare-earth and transition metals. Our findings show that deterministic magnetization reversal occurs above a certain threshold temperature if the ratio of transition metal atoms to rare-earth atoms is sufficiently large. Surprisingly, the total thickness of the multilayer system has little effect on the occurence of switching. We further provide a simple argument to explain the temperature dependence of the reversal process.
@article{arxiv.1703.05220,
title = {Modeling ultrafast all-optical switching in synthetic ferrimagnets},
author = {Stefan Gerlach and Laszlo Oroszlany and Denise Hinzke and Steffen Sievering and Sönke Wienholdt and Laszlo Szunyogh and Ulrich Nowak},
journal= {arXiv preprint arXiv:1703.05220},
year = {2017}
}