Oliver H. Seeck
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View article: Generic Rolling Access to Synchrotron Radiation Facilities
Generic Rolling Access to Synchrotron Radiation Facilities Open
A generic model for rolling access to synchrotron radiation experiments is presented, which has the capacity to replace call-based access models. Proposal submission, evaluation and scheduling are all executed in a rolling fashion. This si…
View article: Towards Defining a Synchronization Standard Between Beamline Components and Synchrotron Accelerators
Towards Defining a Synchronization Standard Between Beamline Components and Synchrotron Accelerators Open
Standardization is a magic word in the electronics engineering jargon. Under its umbrella, it is generated the utopia of transparent integration with the rest of the parts with minimal extra effort for the software integration. But the exp…
View article: Culling a Self-Assembled Quantum Dot as a Single-Photon Source Using X-ray Microscopy
Culling a Self-Assembled Quantum Dot as a Single-Photon Source Using X-ray Microscopy Open
Epitaxially grown self-assembled semiconductor quantum dots (QDs) with atom-like optical properties have emerged as the best choice for single-photon sources required for the development of quantum technology and quantum networks. Nondestr…
View article: The synchrotron radiation source PETRA III and its future ultra-low-emittance upgrade PETRA IV
The synchrotron radiation source PETRA III and its future ultra-low-emittance upgrade PETRA IV Open
PETRA III at DESY is one of the brightest synchrotron radiation sources worldwide. It serves a broad international multidisciplinary user community from academia to industry at currently 25 specialised beamlines. With a storage-ring energy…
View article: Extreme conditions research using the large-volume press at the P61B endstation, PETRA III
Extreme conditions research using the large-volume press at the P61B endstation, PETRA III Open
Penetrating, high-energy synchrotron X-rays are in strong demand, particularly for high-pressure research in physics, chemistry and geosciences, and for materials engineering research under less extreme conditions. A new high-energy wiggle…
View article: Strong size selectivity in the self-assembly of rounded nanocubes into 3D mesocrystals
Strong size selectivity in the self-assembly of rounded nanocubes into 3D mesocrystals Open
Depth-resolved structural analysis reveals strong size selectivity of self-assembled iron oxide nanoparticles.
View article: Experimental Observation of Crystal–Liquid Coexistence in Slit-Confined Nonpolar Fluids
Experimental Observation of Crystal–Liquid Coexistence in Slit-Confined Nonpolar Fluids Open
Films of carbon tetrachloride (CCl$_4$) confined in slit geometry between two flat diamond substrates down to a few tens of Angstroms are studied by combining X-ray reflectivity with in-plane and out-of-plane X-ray scattering. The confined…
View article: Electrodeposition of nanowires of a high copper content thiourea precursor of copper sulfide
Electrodeposition of nanowires of a high copper content thiourea precursor of copper sulfide Open
In this study we reported the pulsed electrodeposition technique of copper thiourea complex nanowires which is an important material class for application as a precursor of copper sulfide nanocrystals with potential use in solar cells, opt…
View article: Self-assembly of liquid crystals in nanoporous solids for adaptive photonic metamaterials
Self-assembly of liquid crystals in nanoporous solids for adaptive photonic metamaterials Open
Nanoporous media exhibit structures significantly smaller than the wavelengths of visible light and can thus act as photonic metamaterials. Their optical functionality is not determined by the properties of the base materials, but rather b…
View article: PETRA IV: the ultralow-emittance source project at DESY
PETRA IV: the ultralow-emittance source project at DESY Open
The PETRA IV project aims at upgrading the present synchrotron radiation source PETRA III at DESY into an ultralow-emittance source. Being diffraction limited up to X-rays of about 10 keV, PETRA IV will be ideal for three-dimensional X-ray…
View article: Quantized Self-Assembly of Discotic Rings in a Liquid Crystal Confined in Nanopores
Quantized Self-Assembly of Discotic Rings in a Liquid Crystal Confined in Nanopores Open
Disklike molecules with aromatic cores spontaneously stack up in linear columns with high, one-dimensional charge carrier mobilities along the columnar axes making them prominent model systems for functional, self-organized matter. We show…
View article: A new setup for high resolution fast X-ray reflectivity data acquisition
A new setup for high resolution fast X-ray reflectivity data acquisition Open
A new method for fast x-ray reflectivity data acquisition is presented. The method is based on a fast rotating, slightly tilted sample reflecting to a stationary mounted position sensitive detector and it allows for measurements of reflect…
View article: Temperature- and potential-dependent structure of the mercury-electrolyte interface
Temperature- and potential-dependent structure of the mercury-electrolyte interface Open
The atomic-scale structure of the mercury-electrolyte (0.01 M NaF) interface was studied as a function of temperature and potential by x-ray reflectivity and x-ray diffuse scattering measurements. The capillary wave contribution is determi…
View article: Plasmonic Lipid Bilayer Membranes for Enhanced Detection Sensitivity of Biolabeling Fluorophores
Plasmonic Lipid Bilayer Membranes for Enhanced Detection Sensitivity of Biolabeling Fluorophores Open
Plasmonics based sensing, using the surface plasmon resonance of metal nanoparticles, has been effectively demonstrated in various applications. Extending this methodology to cell and artificial lipid bilayer membranes is extremely benefic…
View article: Density dependent composition of InAs quantum dots extracted from grazing incidence x-ray diffraction measurements
Density dependent composition of InAs quantum dots extracted from grazing incidence x-ray diffraction measurements Open
Epitaxial InAs quantum dots grown on GaAs substrate are being used in several applications ranging from quantum communications to solar cells. The growth mechanism of these dots also helps us to explore fundamental aspects of self-organize…
View article: Beamline P02.1 at PETRA III for high-resolution and high-energy powder diffraction
Beamline P02.1 at PETRA III for high-resolution and high-energy powder diffraction Open
Powder X-ray diffraction techniques largely benefit from the superior beam quality provided by high-brilliance synchrotron light sources in terms of photon flux and angular resolution. The High Resolution Powder Diffraction Beamline P02.1 …
View article: Role of interface on La0.7Sr0.3MnO3 - Si junction properties
Role of interface on La0.7Sr0.3MnO3 - Si junction properties Open
We present the structural, interface, surface morphological and transport characteristics of La0.7Sr0.3MnO3 (LSMO) thin film on Si (001) substrate. X-ray reflectivity of the La0.7Sr0.3MnO3 thin film confirms the presence of silicon oxide a…