Lymperakis, L.; Neugebauer, J.: Ab-initio based calculation of GaN surfaces, interfaces, and extended defects. Colloquium Paul-Drude-Institut Berlin, Berlin, Germany (2008)
Marquardt, O.; Hickel, T.; Neugebauer, J.: Optical properties of semiconductor nanostructures including strain and piezoelectric effects. PARSEM meeting and workshop, Cambridge, UK (2008)
Hickel, T.; Uijttewaal, M.; Neugebauer, J.: Ab initio Investigations of Temperature Dependent Effects in MSM Alloys. Antragskolloquium SPP1239, Dresden, Germany (2008)
Neugebauer, J.: Optimizing materials properties and epitaxial growth of semiconductor devices by ab initio based multiscale modeling. Workshop "Molecular Modelling and Simulation in Applied Materials Science", Frankfurt a. M., Germany (2008)
Counts, W. A.; Friák, M.; Raabe, D.; Neugebauer, J.: Using Ab Initio to Predict Engineering Parameters in bcc Magnesium-Lithium Alloys. American Physics Society March Meeting, New Orleans, LA, USA (2008)
Abu-Farsakh, H.; Neugebauer, J.: Enhancing N solubility in diluted nitrides by surface kinetics: An ab-initio study. Spring meeting of the German Physical Society (DPG), Berlin, Germany (2008)
Freysoldt, C.; Neugebauer, J.: Charged defects in a supercell formalism: From an empirical to a fully ab-initio treatment of finite-size effects. Spring meeting of the German Physical Society (DPG), Berlin, Germany (2008)
Grabowski, B.; Ismer, L.; Hickel, T.; Neugebauer, J.: Ab initio up to the melting point: Influence of vacancies and explicit anharmonicity. Spring meeting of the German Physical Society (DPG), Berlin, Germany (2008)
Kim, O.; Friák, M.; Neugebauer, J.: Ab initio analysis of the carbon solubility limits in various iron phases. Spring meeting of the German Physical Society (DPG), Berlin, Germany (2008)
Lymperakis, L.; Neugebauer, J.: Thermodynamics and adatom kinetics of non-polar GaN surfaces. Spring meeting of the German Physical Society (DPG), Berlin, Germany (2008)
Marquardt, O.; Hickel, T.; Neugebauer, J.: Plane-wave implementation of the k.p-formalism including strain and piezoelectricity to study the optical properties of semiconductor nanostructures. Spring meeting of the German Physical Society (DPG), Berlin, Germany (2008)
Todorova, M.; Neugebauer, J.: A new approach to obtain electrochemical E/pH diagrams derived from the viewpoint of semiconductor defects. Spring meeting of the German Physical Society (DPG), Berlin, Germany (2008)
Udyansky, A.; Friák, M.; Neugebauer, J.: An ab-initio study of the phase transitions in the interstitial Fe–C solid solutions. Spring meeting of the German Physical Society (DPG), Berlin, Germany (2008)
Uijttewaal, M.; Hickel, T.; Neugebauer, J.: Phase transformations of Ni2MnGa shape memory alloy from first principles. Spring meeting of the German Physical Society (DPG), Berlin, Germany (2008)
Nickel-based alloys are a particularly interesting class of materials due to their specific properties such as high-temperature strength, low-temperature ductility and toughness, oxidation resistance, hot-corrosion resistance, and weldability, becoming potential candidates for high-performance components that require corrosion resistance and good…
In this project, we aim to achieve an atomic scale understanding about the structure and phase transformation process in the dual-phase high-entropy alloys (HEAs) with transformation induced plasticity (TRIP) effect. Aberration-corrected scanning transmission electron microscopy (TEM) techniques are being applied ...
Femtosecond laser pulse sequences offer a way to explore the ultrafast dynamics of charge density waves. Designing specific pulse sequences may allow us to guide the system's trajectory through the potential energy surface and achieve precise control over processes at surfaces.
The aim of this project is to develop novel nanostructured Fe-Co-Ti-X (X = Si, Ge, Sn) compositionally complex alloys (CCAs) with adjustable magnetic properties by tailoring microstructure and phase constituents through compositional and process tuning. The key aspect of this work is to build a fundamental understanding of the correlation between…
In this project, we investigate the phase transformation and twinning mechanisms in a typical interstitial high-entropy alloy (iHEA) via in-situ and interrupted in-situ tensile testing ...
Solitonic excitations with topological properties in charge density waves may be used as information carriers in novel types of information processing.
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 employ a metastability-engineering strategy to design bulk high-entropy alloys (HEAs) with multiple compositionally equivalent high-entropy phases.