Rustam Rysov
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View article: Ultrafast X-ray sonography reveals the spatial heterogeneity of the laser-induced magneto-structural phase transition in FeRh
Ultrafast X-ray sonography reveals the spatial heterogeneity of the laser-induced magneto-structural phase transition in FeRh Open
Phase transitions are governed by both intrinsic and extrinsic heterogeneities, yet capturing their spatio-temporal dynamics remains a challenge. While ultrafast techniques track phase changes on femtosecond timescales, the spatial complex…
View article: Softness and Hydrodynamic Interactions Regulate Lipoprotein Transport in Crowded Yolk Environments
Softness and Hydrodynamic Interactions Regulate Lipoprotein Transport in Crowded Yolk Environments Open
Low-density lipoproteins (LDLs) serve as nutrient reservoirs in egg yolk for embryonic development and as promising drug carriers. Both roles critically depend on their mobility in densely crowded biological environments. Under these crowd…
View article: Focussing options using compound refractive lenses at beamline P10 of PETRA III
Focussing options using compound refractive lenses at beamline P10 of PETRA III Open
In a coherent scattering experiment, one of the important experimental parameters is the speckle visibility, which can be changed by adjusting the size of the X-ray beam on the sample. Focussing optics provide therefore a convenient tool t…
View article: Dynamic X-ray Coherent Diffraction Analysis: Bridging the Time Scales between Imaging and Photon Correlation Spectroscopy
Dynamic X-ray Coherent Diffraction Analysis: Bridging the Time Scales between Imaging and Photon Correlation Spectroscopy Open
The advent of diffraction limited sources and developments in detector technology opens up new possibilities for the study of materials in situ and operando. Coherent X-ray diffraction techniques such as coherent X-ray diffractive imaging …
View article: Dynamic X-ray coherent diffraction analysis: bridging the timescales between imaging and photon correlation spectroscopy
Dynamic X-ray coherent diffraction analysis: bridging the timescales between imaging and photon correlation spectroscopy Open
The advent of diffraction limited sources and developments in detector technology opens up new possibilities for the study of materials in situ and operando. Coherent X-ray diffraction techniques such as coherent X-ray diffractive imaging …
View article: Hard X-ray Fourier transform holography at free electron lasers source
Hard X-ray Fourier transform holography at free electron lasers source Open
We report on the feasibility of Fourier transform holography in the hard X-ray regime using a Free Electron Laser source. Our study shows successful single and multi-pulse holographic reconstructions of the nanostructures. We observe beam-…
View article: Spatially resolved structural and chemical properties of the white layer in machined Inconel 718 super alloy
Spatially resolved structural and chemical properties of the white layer in machined Inconel 718 super alloy Open
Inconel 718 is one type of nickel-based alloy used for a large range of applications, including gas turbines and aeroengines components. Although mechanical and thermodynamic properties of this material have been deeply studied in the past…
View article: THz-Driven Coherent Magnetization Dynamics in a Labyrinth Domain State
THz-Driven Coherent Magnetization Dynamics in a Labyrinth Domain State Open
Terahertz (THz) light pulses can be used for an ultrafast coherent manipulation of the magnetization. Driving the magnetization at THz frequencies is currently the fastest way of writing magnetic information in ferromagnets. Using time-res…
View article: Insight into heterogeneous dynamics of growing islands using coherent x-ray scattering
Insight into heterogeneous dynamics of growing islands using coherent x-ray scattering Open
Understanding the non-equilibrium structure formation of thin films is a fundamental challenge with important implications also for technical applications. The interplay between adsorption, desorption, and surface diffusion may result in t…
View article: Mapping the 3D position of battery cathode particles in Bragg coherent diffractive imaging
Mapping the 3D position of battery cathode particles in Bragg coherent diffractive imaging Open
In Bragg coherent diffractive imaging, the precise location of the measured crystals in the interior of the sample is usually missing. Obtaining this information would help the study of the spatially dependent behavior of particles in the …
View article: Single and multi-pulse based X-ray photon correlation spectroscopy
Single and multi-pulse based X-ray photon correlation spectroscopy Open
The ability of pulsed nature of synchrotron radiation opens up the possibility of studying microsecond dynamics in complex materials via speckle-based techniques. Here, we present the study of measuring the dynamics of a colloidal system b…
View article: Hard X-ray USAXS Fourier Transform Holography
Hard X-ray USAXS Fourier Transform Holography Open
We report on a Fourier transform holography study, employing hard X-ray energies at a 3rd generation storage ring. Nano-structures of various sizes and shapes have been measured in ultra small angle x-ray scattering configuration reaching …
View article: In-vacuum Helmholtz coils for pulsed magnetic fields studying ultrafast demagnetization
In-vacuum Helmholtz coils for pulsed magnetic fields studying ultrafast demagnetization Open
The availability of sub 100 fs short and highly intense free-electron laser (FEL) pulses allows for new insights in laser-induced ultrafast demagnetization (LID) of ferromagnetic thin films on nanometer length scales. We designed a pair of…
View article: Nanosecond X-ray photon correlation spectroscopy using pulse time structure of a storage-ring source
Nanosecond X-ray photon correlation spectroscopy using pulse time structure of a storage-ring source Open
X-ray photon correlation spectroscopy (XPCS) is a routine technique to study slow dynamics in complex systems at storage-ring sources. Achieving nanosecond time resolution with the conventional XPCS technique is, however, still an experime…
View article: Double-pulse speckle contrast correlations with near Fourier transform limited free-electron laser light using hard X-ray split-and-delay
Double-pulse speckle contrast correlations with near Fourier transform limited free-electron laser light using hard X-ray split-and-delay Open
The ability to deliver two coherent X-ray pulses with precise time-delays ranging from a few femtoseconds to nanoseconds enables critical capabilities of probing ultra-fast phenomena in condensed matter systems at X-ray free electron laser…
View article: Development of a compact hard X-ray split-and-delay line for studying ultrafast dynamics at free electron laser sources
Development of a compact hard X-ray split-and-delay line for studying ultrafast dynamics at free electron laser sources Open
The study of condensed matter dynamics on ultrafast timescales is one of the key topics in modern material science research. Hard X-ray free-electron laser sources with extreme peak brightness and ultra short pulses provide excellent condi…
View article: Compact hard X-ray split-and-delay line for studying ultrafast dynamics at free-electron laser sources
Compact hard X-ray split-and-delay line for studying ultrafast dynamics at free-electron laser sources Open
A compact hard X-ray split-and-delay line for studying ultrafast dynamics at free-electron laser sources is presented. The device is capable of splitting a single X-ray pulse into two fractions to introduce time delays from −5 to 815 ps wi…
View article: Spatial and temporal pre-alignment of an X-ray split-and-delay unit by laser light interferometry
Spatial and temporal pre-alignment of an X-ray split-and-delay unit by laser light interferometry Open
We present a novel experimental setup for performing a precise pre-alignment of a hard X-ray split-and-delay unit based on low coherence light interferometry and high-precision penta-prisms. A split-and-delay unit is a sophisticated perfec…
View article: Ultrafast Magnetisation Dynamics at the Low-Fluence Limit Supported by External Magnetic Fields
Ultrafast Magnetisation Dynamics at the Low-Fluence Limit Supported by External Magnetic Fields Open
We report on ultrafast magnetisation dynamics in ferro-magnetic cobalt/platinum multilayers upon pumping by near and mid to far infrared radiation, utilizing sub-100 femtosecond free-electron laser pulses. The evolution of the excited magn…