GdBaCo$_2$O$_{5.5}$薄膜中光诱导反铁磁-铁磁相变与电子结构调制
强关联电子
2022-03-22 v1
摘要
我们通过反射型时间分辨X射线磁圆二色性(XMCDR)与共振磁X射线衍射(RMXD)，研究强关联氧化物体系GdBaCoO薄膜的铁磁(FM)与反铁磁(AFM)超快动力学。观察到一种光诱导AFM-FM相变，其特征为瞬态XMCDR超出未泵浦值而RMXD衰减。瞬态XMCDR与反射率的 photon-energy 依赖关系很可能被解释为伴随发生的光诱导自旋态相变。
引用
@article{arxiv.2105.10083,
title = {Photo-induced Antiferromagnetic-ferromagnetic Transition and Electronic Structure Modulation in GdBaCo$_2$O$_{5.5}$ Thin Film},
author = {Yujun Zhang and Tsukasa Katayama and Akira Chikamatsu and Christian Schüßler-Langeheine and Niko Pontius and Yasuyuki Hirata and Kou Takubo and Kohei Yamagami and Keisuke Ikeda and Kohei Yamamoto and Tetsuya Hasegawa and Hiroki Wadati},
journal= {arXiv preprint arXiv:2105.10083},
year = {2022}
}