Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
Resonant elastic x-ray scattering has been widely employed for exploring complex electronic ordering phenomena, such as charge, spin, and orbital order, in particular, in strongly correlated electronic systems. In addition, recent developments in 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 eV-1300 eV) with a time resolution of ∼100 fs without jitter correction. As an example, the temporal dynamics of a charge density wave on a high-temperature cuprate superconductor is demonstrated.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1063/5.0016414 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Strong Magnon-Phonon Coupling in the Kagome Antiferromagnets.
Phys Rev Lett
August 2025
University of Augsburg, Experimental Physics VI, Center for Electronic Correlations and Magnetism, 86159 Augsburg, Germany.
Magnon-phonon hybridization in ordered materials is a crucial phenomenon with significant implications for spintronics, magnonics, and quantum materials research. We present direct experimental evidence and theoretical insights into magnon-phonon coupling in Mn_{3}Ge, a kagome antiferromagnet with noncollinear spin order. Using inelastic x-ray scattering and ab initio modeling, we uncover strong hybridization between planar spin fluctuations and transverse optical phonons, resulting in a large hybridization gap of ∼2 meV.
View Article and Find Full Text PDFImaging Valence Electron Rearrangement in a Chemical Reaction Using Hard X-Ray Scattering.
Phys Rev Lett
August 2025
Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA.
We have observed the signatures of valence electron rearrangement in photoexcited ammonia using ultrafast hard x-ray scattering. Time-resolved x-ray scattering is a powerful tool for imaging structural dynamics in molecules because of the strong scattering from the core electrons localized near each nucleus. Such core-electron contributions generally dominate the differential scattering signal, masking any signatures of rearrangement in the chemically important valence electrons.
View Article and Find Full Text PDFLocal Dzyaloshinskii-Moriya Interactions Driving Quasi-2D Magnetism in a Centrosymmetric Nanoskyrmion Material.
Phys Rev Lett
August 2025
Durham University, Department of Physics, South Road, Durham DH1 3LE, United Kingdom.
The unabating discovery of nanoskyrmions in centrosymmetric magnets challenges the conventional Dzyaloshinskii-Moriya (DM) skyrmion stabilization mechanism. We investigate Gd_{2}PdSi_{3} using polarized resonant x-ray scattering and find that the low-field incommensurate modulations are elliptical helices, evolving into spin-density waves at higher fields. Quasi-2D magnetism arises via local DM interactions generated by inversion symmetry breaking around Gd-Gd bonds, which we characterize using atomistic simulations.
View Article and Find Full Text PDFStructural evolution of microfibers in seawater and freshwater under simulated sunlight: A small- and wide-angle X-ray scattering study.
PLoS One
September 2025
Department of Life and Environmental Sciences, Polytechnic University of Marche, Ancona, Italy.
Microfibers are pollutants of increasing concern, as they accumulate in aquatic environments and pose risks to living organisms. Once released, they undergo degradation processes that reduce their size and enhance their ability to interact with biological systems. Among these processes, photodegradation is a key driver, leading to fiber fragmentation and structural shrinkage.
View Article and Find Full Text PDFTender x-ray microfocus beamline employing a combined double crystal/multilayer grating monochromator.
Rev Sci Instrum
September 2025
Helmholtz-Zentrum Berlin für Materialien und Energie (HZB), Albert-Einstein-Str. 15, 12489 Berlin, Germany.
A new x-ray beamline at the Physikalisch-Technische Bundesanstalt laboratory at BESSY II provides monochromatized radiation in the energy range from 1 to 10 keV, with a typical focus size of 20 μm. It is not only optimized for high-resolution x-ray spectrometry and microscopy but also enables scattering experiments and radiometric measurements. The innovative monochromator consists of a plane grating monochromator module equipped with multilayer-coated blazed gratings for x-ray energies up to 4 keV and an integrated double-crystal monochromator module equipped with silicon (111) crystals for x-ray energies ranging from 2.
View Article and Find Full Text PDF