André Rothkirch
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View article: Status and implementation of the MXCuBE experiment control and ISPyB information system at the P11 macromolecular crystallography beamline at PETRA III (DESY, Hamburg)
Status and implementation of the MXCuBE experiment control and ISPyB information system at the P11 macromolecular crystallography beamline at PETRA III (DESY, Hamburg) Open
The P11 beamline at PETRA III (DESY, Hamburg) is a versatile instrument dedicated to High Throughput Macromolecular Crystallography. The combination of the Eiger detector and sample changer robot allows data collection in about two minutes…
View article: Ultra-fast heating effects in an aqueous salt solution investigated via X-ray split-and-delay technique
Ultra-fast heating effects in an aqueous salt solution investigated via X-ray split-and-delay technique Open
We present a split-and-delay study on an aqueous salt solution. We employed SACLA split-and-delay optics to split each FEL pulse into pair of two pulses and delayed one of them. The sample was delivered via a liquid jet system which was il…
View article: Time-Resolved X-Ray Diffraction Measurements of Structural Phase Transitions in Zirconium
Time-Resolved X-Ray Diffraction Measurements of Structural Phase Transitions in Zirconium Open
View article: Hard X-ray full-field nanoimaging using a direct photon-counting detector
Hard X-ray full-field nanoimaging using a direct photon-counting detector Open
Full-field X-ray nanoimaging is a widely used tool in a broad range of scientific areas. In particular, for low-absorbing biological or medical samples, phase contrast methods have to be considered. Three well established phase contrast me…
View article: Beamline-implemented stretching devices for in situ X-ray scattering experiments
Beamline-implemented stretching devices for in situ X-ray scattering experiments Open
Two recently developed experimental devices for investigating soft matter deformation are presented. Both devices exploit the capabilities of a modern synchrotron beamline to enable advanced and highly precise materials-science experiments…
View article: In Situ Monitoring of Scale Effects on Phase Selection and Plasmonic Shifts during the Growth of AgCu Alloy Nanostructures for Anticounterfeiting Applications
In Situ Monitoring of Scale Effects on Phase Selection and Plasmonic Shifts during the Growth of AgCu Alloy Nanostructures for Anticounterfeiting Applications Open
Tailoring of plasmon resonances is essential for applications in anticounterfeiting. This is readily achieved by tuning the composition of alloyed metal clusters; in the simplest case, binary alloys are used. Yet, one challenge is the corr…
View article: In situ X-ray measurements over large Q-space to study the evolution of oxide thin films prepared by RF sputter deposition
In situ X-ray measurements over large Q-space to study the evolution of oxide thin films prepared by RF sputter deposition Open
View article: Fast-current-heating devices to study <i>in situ</i> phase formation in metallic glasses by using high-energy synchrotron radiation
Fast-current-heating devices to study <i>in situ</i> phase formation in metallic glasses by using high-energy synchrotron radiation Open
Details of fast-resistive-heating setups, controlled heating ranging from ∼101 K s−1 to ∼103 K s−1, to study in situ phase transformations (on heating and on cooling) in metallic glasses by high-energy synchrotron x-ray diffraction are dis…
View article: Phase formation of a biocompatible Ti-based alloy under kinetic constraints studied via in-situ high-energy X-ray diffraction
Phase formation of a biocompatible Ti-based alloy under kinetic constraints studied via in-situ high-energy X-ray diffraction Open
The biocompatible Ti40Cu34Pd14Zr10Sn2 bulk metallic glass was rapidly heated, also known as flash-annealed, at varying heating rates up to 1579 K/s. Thereby, the phase formation was characterized via advanced in-situ high-energy X-ray diff…
View article: <i>In situ</i> XRD Study of Rapid Crystallization of Metallic Glasses Using Novel Experimental Setup for Flash-Annealing
<i>In situ</i> XRD Study of Rapid Crystallization of Metallic Glasses Using Novel Experimental Setup for Flash-Annealing Open
Fe-based metallic glasses (MGs) are known to exhibit excellent soft magnetic properties.A very effective way to further improve their magnetic properties is to incorporate nanocrystals into the glassy matrix.Usually it is done by conventio…
View article: Probing the Surface of La₀.₆Sr₀.₄MnO₃ in Water Vapor by In Situ Photon-In/Photon-Out Spectroscopy
Probing the Surface of La₀.₆Sr₀.₄MnO₃ in Water Vapor by In Situ Photon-In/Photon-Out Spectroscopy Open
Resonant inelastic X ray scattering RIXS is a promising method for elucidating detailed electronic structure of materials in a broad range of chemical and physical applications. Here, we use the fine fluorescence energy resolution of a RIX…
View article: Determination of the Surface Facets of Gold Nanorods in Wet‐Coated Thin Films with Grazing‐Incidence Wide Angle X‐Ray Scattering
Determination of the Surface Facets of Gold Nanorods in Wet‐Coated Thin Films with Grazing‐Incidence Wide Angle X‐Ray Scattering Open
This work studies the surface facets of gold nanorods (AuNRs) in wet‐coated nanoparticle thin films with synchrotron‐light‐based grazing‐incidence wide angle X‐ray scattering (GIWAXS), which provides statistically relevant results on many …
View article: Structure–Function Correlations in Sputter Deposited Gold/Fluorocarbon Multilayers for Tuning Optical Response
Structure–Function Correlations in Sputter Deposited Gold/Fluorocarbon Multilayers for Tuning Optical Response Open
A new strategy to nanoengineer gold/fluorocarbon multilayer (ML) nanostructures is reported. We have investigated the morphological changes occurring at the metal–polymer interface in ML structures with varying volume fraction of gold (Au)…
View article: Structure-Function Correlations in Sputter Deposited Gold/Fluorocarbon Multilayers for Tuning Optical Response
Structure-Function Correlations in Sputter Deposited Gold/Fluorocarbon Multilayers for Tuning Optical Response Open
A new strategy to nanoengineer gold/fluorocarbon multilayer (ML) nanostructures is reported. We have investigated the morphological changes occuring at the metal-polymer interface in multilayer structures with varying volume fraction of go…
View article: New dynamic diamond anvil cells for tera-pascal per second fast compression x-ray diffraction experiments
New dynamic diamond anvil cells for tera-pascal per second fast compression x-ray diffraction experiments Open
Fast compression experiments performed using dynamic diamond anvil cells (dDACs) employing piezoactuators offer the opportunity to study compression-rate dependent phenomena. In this paper, we describe an experimental setup which allows us…
View article: Towards the geometric structure of small supported Au9 clusters on Si
Towards the geometric structure of small supported Au9 clusters on Si Open
View article: Morphological properties of airbrush spray-deposited enzymatic cellulose thin films
Morphological properties of airbrush spray-deposited enzymatic cellulose thin films Open
We investigate the layer formation of enzymatic cellulose by airbrush spray coating on silicon oxide surfaces. The layer structure and morphology of enzymatic cellulose films in the thickness range between 86 nm and 2.1 µm is determined as…
View article: LAMBDA 2M GaAs—A multi-megapixel hard X-ray detector for synchrotrons
LAMBDA 2M GaAs—A multi-megapixel hard X-ray detector for synchrotrons Open
Synchrotrons can provide very intense and focused X-ray beams, which can be used to study the structure of matter down to the atomic scale. In many experiments, the quality of the results depends strongly on detector performance; in partic…
View article: Investigation of time dependence of dissipation and strain induced crystallization in natural rubber under cyclic and impact loading
Investigation of time dependence of dissipation and strain induced crystallization in natural rubber under cyclic and impact loading Open
Strain Induced Crystallization (SIC) is one of the special features of Natural Rubber (NR), responsible for its outstanding mechanical performance. Especially, for the short term behavior of NR, e.g. within a rolling tire, the kinetics of …
View article: Transmission zone plates as analyzers for efficient parallel 2D RIXS-mapping
Transmission zone plates as analyzers for efficient parallel 2D RIXS-mapping Open
View article: Data reduction for XAS experiments with the 100 element Ge Detector
Data reduction for XAS experiments with the 100 element Ge Detector Open
X-ray absorption spectroscopy on dilute samples is still a challenge nowadays. By means of the fluorescence processes that follow the absorption it is possible to obtain the XAS spectrum; however, in order to gain sufficient statistics a m…
View article: ASAP3 - Developments for the 2016 Data Taking Season
ASAP3 - Developments for the 2016 Data Taking Season Open
View article: A non-destructive view with X-rays into the strain state of bronze axes
A non-destructive view with X-rays into the strain state of bronze axes Open
In this paper we present a new approach using highly surface sensitive X-ray diffraction methods for archaeometrical investigation highlighted on the Neolithic Axe of Ahneby. Applying the sin2Ψ-method with a scintillation detector and a MA…
View article: Direct Observation of Melting in Shock-Compressed Bismuth With Femtosecond X-ray Diffraction
Direct Observation of Melting in Shock-Compressed Bismuth With Femtosecond X-ray Diffraction Open
The melting of bismuth in response to shock compression has been studied using in situ femtosecond x-ray diffraction at an x-ray free electron laser. Both solid-solid and solid-liquid phase transitions are documented using changes in discr…
View article: The Extreme Conditions Beamline P02.2 and the Extreme Conditions Science Infrastructure at PETRA III
The Extreme Conditions Beamline P02.2 and the Extreme Conditions Science Infrastructure at PETRA III Open
A detailed description is presented of the Extreme Conditions Beamline P02.2 for micro X-ray diffraction studies of matter at simultaneous high pressure and high/low temperatures at PETRA III, in Hamburg, Germany. This includes performance…
View article: Real-Time Monitoring of Morphology and Optical Properties during Sputter Deposition for Tailoring Metal–Polymer Interfaces
Real-Time Monitoring of Morphology and Optical Properties during Sputter Deposition for Tailoring Metal–Polymer Interfaces Open
The reproducible low-cost fabrication of functional metal-polymer nanocomposites with tailored optoelectronic properties for advanced applications remains a major challenge in applied nanotechnology. To obtain full control over the nanostr…
View article: <i>In situ</i>x-ray diffraction of fast compressed iron: Analysis of strains and stress under non-hydrostatic pressure
<i>In situ</i>x-ray diffraction of fast compressed iron: Analysis of strains and stress under non-hydrostatic pressure Open
Series of high-pressure x-ray diffraction patterns of iron and its high-pressure polymorphs were collected with
\n0.1–0.2-s exposure time utilizing a membrane diamond anvil cell (DAC) for compression at various loading and
\nunloading rate…