Results 1 to 10 of about 30,908 (277)

Monitoring nonadiabatic avoided crossing dynamics in molecules by ultrafast X-ray diffraction [PDF]

open access: yesStructural Dynamics, 2017
We examine time-resolved X-ray diffraction from molecules in the gas phase which undergo nonadiabatic avoided-crossing dynamics involving strongly coupled electrons and nuclei.
Markus Kowalewski   +2 more
doaj   +17 more sources

Observation of a single protein by ultrafast X-ray diffraction [PDF]

open access: yesLight: Science & Applications
The idea of using ultrashort X-ray pulses to obtain images of single proteins frozen in time has fascinated and inspired many. It was one of the arguments for building X-ray free-electron lasers.
Tomas Ekeberg   +44 more
doaj   +11 more sources

Low-temperature nanoscale heat transport in a gadolinium iron garnet heterostructure probed by ultrafast x-ray diffraction [PDF]

open access: yesStructural Dynamics, 2022
Time-resolved x-ray diffraction has been used to measure the low-temperature thermal transport properties of a Pt/Gd3Fe5O12//Gd3Ga5O12 metal/oxide heterostructure relevant to applications in spin caloritronics.
Deepankar Sri Gyan   +13 more
doaj   +2 more sources

Non-linear enhancement of ultrafast X-ray diffraction through transient resonances [PDF]

open access: yesNature Communications
Diffraction-before-destruction imaging with ultrashort X-ray pulses can visualize non-equilibrium processes, such as chemical reactions, with sub-femtosecond precision in the native environment.
Stephan Kuschel   +17 more
doaj   +2 more sources

Soft-mode driven polarity reversal in ferroelectrics mapped by ultrafast x-ray diffraction [PDF]

open access: yesStructural Dynamics, 2018
Quantum theory has linked microscopic currents and macroscopic polarizations of ferroelectrics, but the interplay of lattice excitations and charge dynamics on atomic length and time scales is an open problem.
Christoph Hauf   +4 more
doaj   +2 more sources

Phonon driven charge dynamics in polycrystalline acetylsalicylic acid mapped by ultrafast x-ray diffraction [PDF]

open access: yesStructural Dynamics, 2019
The coupled lattice and charge dynamics induced by phonon excitation in polycrystalline acetylsalicylic acid (aspirin) are mapped by femtosecond x-ray powder diffraction.
Christoph Hauf   +4 more
doaj   +2 more sources

Ultrafast X-ray diffraction probe of terahertz field-driven soft mode dynamics in SrTiO3 [PDF]

open access: yesStructural Dynamics, 2017
We use ultrafast X-ray pulses to characterize the lattice response of SrTiO3 when driven by strong terahertz fields. We observe transient changes in the diffraction intensity with a delayed onset with respect to the driving field ...
M. Kozina   +8 more
doaj   +2 more sources

Theory and simulation of far field diffraction patterns in Talbot-based transient grating spectroscopy at X-ray free electron lasers [PDF]

open access: yesScientific Reports
The recent extension of transient grating (TG) spectroscopy to the X-ray regime at X-ray free electron lasers (XFEL) facilities has opened new possibilities for studying ultrafast dynamics and nanoscale transport.
Andrii Goloborodko   +2 more
doaj   +2 more sources

Experimental capabilities for liquid jet samples at sub-MHz rates at the FXE Instrument at European XFEL

open access: yesJournal of Synchrotron Radiation, 2023
The Femtosecond X-ray Experiments (FXE) instrument at the European X-ray Free-Electron Laser (EuXFEL) provides an optimized platform for investigations of ultrafast physical, chemical and biological processes.
F. A. Lima   +26 more
doaj   +1 more source

Advances in Diffraction Studies of Light-Induced Transient Species in Molecular Crystals and Selected Complementary Techniques

open access: yesCrystals, 2021
The review provides a summary of the current methods of tracing photoexcitation processes and structural dynamics in the solid state, putting major emphasis on the X-ray diffraction techniques (time-resolved Laue diffraction on synchrotron sources and ...
Krystyna A. Deresz   +3 more
doaj   +1 more source

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