Time-resolved resonant elastic soft X-ray scattering at Pohang Accelerator Laboratory X-ray Free Electron Laser
Abstract
Resonant elastic X-ray scattering has been widely employed for exploring complex electronic ordering phenomena, like charge, spin, and orbital order, in particular in strongly correlated electronic systems. In addition, recent developments of pump-probe X-ray scattering allow us to expand the investigation of the temporal dynamics of such orders. Here, we introduce a new time-resolved Resonant Soft X-ray Scattering (tr-RSXS) endstation developed at the Pohang Accelerator Laboratory X-ray Free Electron Laser (PAL-XFEL). This endstation has an optical laser (wavelength of 800 nm plus harmonics) as the pump source. Based on the commissioning results, the tr-RSXS at PAL-XFEL can deliver a soft X-ray probe (400-1300 eV) with a time resolution about ~100 fs without jitter correction. As an example, the temporal dynamics of a charge density wave on a high-temperature cuprate superconductor is demonstrated.
Keywords
Cite
@article{arxiv.2006.03273,
title = {Time-resolved resonant elastic soft X-ray scattering at Pohang Accelerator Laboratory X-ray Free Electron Laser},
author = {Hoyoung Jang and Hyeong-Do Kim and Minseok Kim and Sang Han Park and Soonnam Kwon and Ju Yeop Lee and Sang-Youn Park and Gisu Park and Seonghan Kim and HyoJung Hyun and Sunmin Hwang and Chae-Soon Lee and Chae-Yong Lim and Wonup Gang and Myeongjin Kim and Seongbeom Heo and Jinhong Kim and Gigun Jung and Seungnam Kim and Jaeku Park and Jihwa Kim and Hocheol Shin and Jaehun Park and Tae-Yeong Koo and Hyun-Joon Shin and Hoon Heo and Changbum Kim and Changi-Ki Min and Jang-Hui Han and Heung-Sik Kang and Heung-Soo Lee and Kyung Sook Kim and Intae Eom and Seungyu Rah},
journal= {arXiv preprint arXiv:2006.03273},
year = {2020}
}
Comments
7 figures, 2 tables