Time-resolved resonant elastic soft X-ray scattering at Pohang Accelerator Laboratory X-ray Free Electron Laser
Authors:
Preprint
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
All Related Versions
This publication has 44 references indexed in Scilit:
- Direct observation of the electronic states of photoexcited hematite with ultrafast 2p3d X-ray absorption spectroscopy and resonant inelastic X-ray scatteringPhysical Chemistry Chemical Physics, 2019
- Hard X-ray free-electron laser with femtosecond-scale timing jitterNature Photonics, 2017
- Resonant Soft X-Ray Scattering Studies of Transition-Metal Oxides2016
- Nonlinear lattice dynamics as a basis for enhanced superconductivity in YBa2Cu3O6.5Nature, 2014
- Resonant and nonresonant control over matter and light by intense terahertz transientsNature Photonics, 2013
- Achieving few-femtosecond time-sorting at hard X-ray free-electron lasersNature Photonics, 2013
- Phase fluctuations and the absence of topological defects in a photo-excited charge-ordered nickelateNature Communications, 2012
- First lasing and operation of an ångstrom-wavelength free-electron laserNature Photonics, 2010
- Gas detectors for x-ray lasersJournal of Applied Physics, 2008
- Interplay between spin, charge and orbital degrees of freedom in magnetic oxidesSolid State Communications, 1997