High Contrast X-ray Speckle from Atomic-Scale Order in Liquids and Glasses
arXiv:1207.2458 · doi:10.1103/PhysRevLett.109.185502
Abstract
The availability of ultrafast pulses of coherent hard x-rays from the Linac Coherent Light Source opens new opportunities for studies of atomic-scale dynamics in amorphous materials. Here we show that single ultrafast coherent x-ray pulses can be used to observe the speckle contrast in the high-angle diffraction from liquid Ga and glassy Ni2Pd2P and B2O3. We determine the thresholds above which the x-ray pulses disturb the atomic arrangements. Furthermore, high contrast speckle is observed in scattering patterns from the glasses integrated over many pulses, demonstrating that the source and optics are sufficiently stable for x-ray photon correlation spectroscopy studies of dynamics over a wide range of time scales.
References in corpus (2)
Cited by in corpus (13)
- Resolving molecular diffusion and aggregation of antibody proteins with megahertz X-ray free-electron laser pulses
- Low dose X-ray speckle visibility spectroscopy reveals nanoscale dynamics in radiation sensitive ionic liquids
- Split-pulse X-ray photon correlation spectroscopy with seeded X-rays from X-ray laser to study atomic-level dynamics
- Realizing split-pulse x-ray photon correlation spectroscopy to measure ultrafast dynamics in complex matter
- A Snapshot Review -- Fluctuations in Quantum Materials: From Skyrmions to Superconductivity
- Time-delayed beam splitting with energy separation of x-ray channels
- Beam-induced Atomic Motion in Alkali Borate Glasses
- Nanoscale heterogeneous dynamics probed by nanosecond x-ray speckle visibility spectroscopy
- Co-GISAXS as a New Technique to Investigate Surface Growth Dynamics
- A machine learning photon detection algorithm for coherent X-ray ultrafast fluctuation analysis
- Hard X-rays as pump and probe of atomic motion in oxide glasses
- Generation of highly mutually coherent hard x-ray pulse pairs with an amplitude-splitting delay line
- Using low dose X-ray Speckle Visibility Spectroscopy to study dynamics of soft matter samples