Neugebauer, J.: Ab initio basiertes Computergestütztes Materialdesign: Von der chemischen Bindung zu realen Werkstoffeigenschaften. Seminar at the TU Clausthal, TU Clausthal, Germany (2008)
Marquardt, O.; Hickel, T.; Neugebauer, J.: Optical properties of semiconductor nanostructures, a PW-approach to real-space properties. MRL seminar at UCSB, UCSB, Santa Barbara, USA (2008)
Grabowski, B.; Hickel, T.; Neugebauer, J.: From ab initio to materials properties: Accuracy and error bars of DFT thermodynamics. Phonon Workshop, Krakau, Poland (2007)
Hickel, T.; Uijttewaal, M.; Grabowski, B.; Neugebauer, J.: Determination of symmetry reduced structures by a soft-phonon analysis in magnetic shape memory alloys. 2nd Workshop on ab initio phonon calculations, Cracow, Poland (2007)
Neugebauer, J.: Ab initio thermodynamic and kinetics based on material design: Present status and perspectives. Seminar at the University of Oxford, Dept. of Materials, Oxford, UK (2007)
Friák, M.; Sander, B.; Ma, D.; Raabe, D.; Neugebauer, J.: Phase stability and mechanical properties of alloys. International Max-Planck Workshop on Multiscale Modeling of Condensed Matter, Sant Feliu de Guixols, Spain (2007)
Neugebauer, J.: Ab initio thermodynamics. International Max-Planck Workshop Multiscale Materials Modeling of Condensed Matter, Sant Feliu de Guixols, Spain (2007)
Friák, M.; Neugebauer, J.: First principles study of the anomalous volume-composition effect in Fe-Al and Fe-Ga alloys. 4th Discussion Meeting on the Development of Innovative Iron Aluminum Alloys, Interlaken, Switzerland (2007)
Abu-Farsakh, H.; Neugebauer, J.: Ab-initio study of the thermodynamics and kinetics of N at GaAs(001) surface. PAW workshop 2007, Goslar, Germany (2007)
Dick, A.; Neugebauer, J.: Ab initio STM and STS simulations on magnetic and nonmagnetic metallic surfaces. Computational Materials Science Workshop, Goslar, Germany (2007)
Kim, O.; Friák, M.; Neugebauer, J.: Ab-initio study of formation energies in steel and their relations to the solubility limits of carbon in austenite and ferrite. PAW workshop 2007, Goslar, Germany (2007)
In this project, we employ a metastability-engineering strategy to design bulk high-entropy alloys (HEAs) with multiple compositionally equivalent high-entropy phases.
Low dimensional electronic systems, featuring charge density waves and collective excitations, are highly interesting from a fundamental point of view. These systems support novel types of interfaces, such as phase boundaries between metals and charge density waves.
In this project, links are being established between local chemical variation and the mechanical response of laser-processed metallic alloys and advanced materials.
In this project we conduct together with Dr. Sandlöbes at RWTH Aachen and the department of Prof. Neugebauer ab initio calculations for designing new Mg – Li alloys. Ab initio calculations can accurately predict basic structural, mechanical, and functional properties using only the atomic composition as a basis.
The wide tunability of the fundamental electronic bandgap by size control is a key attribute of semiconductor nanocrystals, enabling applications spanning from biomedical imaging to optoelectronic devices. At finite temperature, exciton-phonon interactions are shown to exhibit a strong impact on this fundamental property.
About 90% of all mechanical service failures are caused by fatigue. Avoiding fatigue failure requires addressing the wide knowledge gap regarding the micromechanical processes governing damage under cyclic loading, which may be fundamentally different from that under static loading. This is particularly true for deformation-induced martensitic…
In this project we study - together with the department of Prof. Neugebauer and Dr. Sandlöbes at RWTH Aachen - the underlying mechanisms that are responsible for the improved room-temperature ductility in Mg–Y alloys compared to pure Mg.
Efficient harvesting of sunlight and (photo-)electrochemical conversion into solar fuels is an emerging energy technology with enormous promise. Such emerging technologies depend critically on materials systems, in which the integration of dissimilar components and the internal interfaces that arise between them determine the functionality.