Abu-Farsakh, H.; Neugebauer, J.: Enhancing nitrogen solubility in GaAs and InAs by surface kinetics: An ab initio study. Physical Review B 79, 155311, pp. 155311 - 155323 (2009)
Abu-Farsakh, H.; Neugebauer, J.: Exploring the unusual diffusion of N adatoms on GaAs(001) using first principles calculations. DPG Frühjahrstagung 2010, Regensburg, Germany (2010)
Abu-Farsakh, H.; Neugebauer, J.: Exploring the unusual diffusion of N adatoms at GaAs(001) surface. Computational Materials Science on Complex Energy Landscapes Workshop, Imst, Austria (2010)
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)
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)
Abu-Farsakh, H.; Neugebauer, J.: In-N anti-correlation in InGaAsN alloys: The delicate interplay between adatom thermodynamics and kinetics. Spring meeting of the German Physical Society (DPG), Regensburg, Germany (2007)
Abu-Farsakh, H.; Neugebauer, J.: Tailoring the N-solubility in InGaAs-alloys by surface engineering: Applications and limits. 1. Harzer Ab initio Workshop, Clausthal, Germany (2006)
Abu-Farsakh, H.; Neugebauer, J.: Incorporation of N at GaAs and InAs surfaces: An ab-initio study. Technische Universität Berlin, Berlin, Germany (2006)
Abu-Farsakh, H.; Dick, A.; Neugebauer, J.: Incorporation of N at GaAs and InAs surfaces. Deutsche Physikalische Gesellschaft Spring Meeting of the Division Condensed Matter, Dresden, Germany (2006)
Abu-Farsakh, H.; Neugebauer, J.: Combined ab-initio and Monte Carlo calculations to explore the surface thermodynamics and kinetics of dilute nitrides. 8th International Conference on Nitride Semiconductors (ICNS-8), Jeju Island, South Korea (2009)
Abu-Farsakh, H.; Neugebauer, J.: The role of surface kinetics in achieving high non-equilibrium N concentrations in bulk GaAs. DPG Spring Meeting 2009, Dresden, Germany (2009)
Abu-Farsakh, H.; Neugebauer, J.; Albrecht, M.: Ab-initio study of compositional anti-correlation of In and N in InGaAsN alloys. The 7th International Conference of Nitride Semiconductors (ICNS-7), Las Vegas, NV, USA (2007)
Abu-Farsakh, H.; Neugebauer, J.: Enhancing the solubility of N in GaAs and InAs by surface kinetics. 28th International Conference on the Physics of Semiconductors, Vienna, Austria (2006)
Abu-Farsakh, H.; Neugebauer, J.: Enhancing bulk solubility by surface engineering: An ab-initio study. Workshop: Ab initio Description of Iron and Steel, Status and future challenges, Ringberg Castle, Germany (2006)
Abu-Farsakh, H.: Understanding the interplay between thermodynamics and surface kinetics in the growth of dilute nitride alloys from first principles. Dissertation, University of Paderborn, Paderborn, Germany (2010)
Hydrogen in aluminium can cause embrittlement and critical failure. However, the behaviour of hydrogen in aluminium was not yet understood. Scientists at the Max-Planck-Institut für Eisenforschung were able to locate hydrogen inside aluminium’s microstructure and designed strategies to trap the hydrogen atoms inside the microstructure. This can…
Oxidation and corrosion of noble metals is a fundamental problem of crucial importance in the advancement of the long-term renewable energy concept strategy. In our group we use state-of-the-art electrochemical scanning flow cell (SFC) coupled with inductively coupled plasma mass spectrometer (ICP-MS) setup to address the problem.
For understanding the underlying hydrogen embrittlement mechanism in transformation-induced plasticity steels, the process of damage evolution in a model austenite/martensite dual-phase microstructure following hydrogenation was investigated through multi-scale electron channelling contrast imaging and in situ optical microscopy.
We plan to investigate the rate-dependent tensile properties of 2D materials such as metal thin films and PbMoO4 (PMO) films by using a combination of a novel plan-view FIB based sample lift out method and a MEMS based in situ tensile testing platform inside a TEM.
This project aims to investigate the influence of grain boundaries on mechanical behavior at ultra-high strain rates and low temperatures. For this micropillar compressions on copper bi-crystals containing different grain boundaries will be performed.
Hydrogen induced embrittlement of metals is one of the long standing unresolved problems in Materials Science. A hierarchical multiscale approach is used to investigate the underlying atomistic mechanisms.
Hydrogen embrittlement affects high-strength ferrite/martensite dual-phase (DP) steels. The associated micromechanisms which lead to failure have not been fully clarified yet. Here we present a quantitative micromechanical analysis of the microstructural damage phenomena in a model DP steel in the presence of hydrogen.
We will investigate the electrothermomechanical response of individual metallic nanowires as a function of microstructural interfaces from the growth processes. This will be accomplished using in situ SEM 4-point probe-based electrical resistivity measurements and 2-point probe-based impedance measurements, as a function of mechanical strain and…
The project aims to study corrosion, a detrimental process with an enormous impact on global economy, by combining denstiy-functional theory calculations with thermodynamic concepts.