通过时间分辨共振 X 射线衍射观测条纹有序镍酸盐中强耦合自旋与电荷序参量的实时表现
强关联电子
2015-06-15 v1
摘要
我们利用时间分辨共振 X 射线衍射研究了条纹有序镍酸盐 LaSrNiO 的序参量动力学。尽管自旋和电荷具有不同的能标,但发现由于强耦合,这两个序参量的振幅动力学是相互关联的。此外,自旋部分的矢量特性引入了一个较长的重取向时间尺度,而这在电荷部分是不存在的。这些发现表明,联系对称性破缺态的关联在非平衡过程中并未解绑,且时间尺度不一定与单个自由度的特征能标相关联。
引用
@article{arxiv.1302.4522,
title = {Real-time manifestation of strongly coupled spin and charge order parameters in stripe-ordered nickelates via time-resolved resonant x-ray diffraction},
author = {Y. D. Chuang and W. S. Lee and Y. F. Kung and A. P. Sorini and B. Moritz and R. G. Moore and L. Patthey and M. Trigo and D. H. Lu and P. S. Kirchmann and M. Yi and O. Krupin and M. Langner and Y. Zhu and S. Y. Zhou and D. A. Reis and N. Huse and J. S. Robinson and R. A. Kaindl and R. W. Schoenlein and S. L. Johnson and M. Forst and D. Doering and P. Denes and W. F. Schlotter and J. J. Turner and T. Sasagawa and Z. Hussain and Z. X. Shen and T. P. Devereaux},
journal= {arXiv preprint arXiv:1302.4522},
year = {2015}
}
备注
4 figures. Accepted by Physical Review Letter