利用相邻层中的反铁磁序加速铁磁薄膜的激光诱导退磁
介观与纳米尺度物理
2021-01-04 v1
摘要
我们研究了 Ni/NiMn 与 Co/NiMn 铁磁/反铁磁双层体系在激光脉冲激发后的超快退磁。我们利用时间分辨泵浦—探测共振 X 射线反射中的磁圆二色性探测 Ni 与 Co 的铁磁序。将样品温度调至 NiMn 层的反铁磁有序温度上下，可研究后者磁序所诱导的效应。NiMn 中反铁磁序的存在加快了铁磁层的退磁，这归因于铁磁层与反铁磁层之间双向的激光诱导超扩散自旋流。
引用
@article{arxiv.2008.05268,
title = {Accelerating the laser-induced demagnetization of a ferromagnetic film by antiferromagnetic order in an adjacent layer},
author = {Ivar Kumberg and Evangelos Golias and Niko Pontius and Rahil Hosseinifar and Karl Frischmuth and Ismet Gelen and Tauqir Shinwari and Sangeeta Thakur and Christian Schüssler-Langeheine and Peter Oppeneer and Wolfgang Kuch},
journal= {arXiv preprint arXiv:2008.05268},
year = {2021}
}
备注
20 pages, 6 figures