Rinke, P.; Qteish, A.; Winkelnkemper, M.; Bimberg, D.; Neugebauer, J.; Scheffler, M.: Band gap and band parameters of InN and GaN from quasiparticle energy calculations based on exact-exchange density-functional theory. Applied Physics Letters 89 (16), 161919 (2006)
Rosa, A. L.; Neugebauer, J.: Understanding Si adsorption on GaN (0001) surfaces using first-principles calculations. Physical Review B 73, 20, p. 205314 (2006)
Wahn, M.; Neugebauer, J.: Generalized Wannier functions: An efficient way to construct ab-initio tight-binding parameters for group-III nitrides. Physica Status Solidi B: Basic Research 243, 7, pp. 1583 - 1587 (2006)
Rinke, P.; Qteish, A.; Neugebauer, J.; Freysoldt, C.; Scheffler, M.: Combining GW calculations with exact-exchange density-functional theory: An analysis of valence-band photoemission for compound seminconductors. New Journal of Physics 7, pp. 126 - 160 (2005)
Ireta, J.; Neugebauer, J.; Scheffler, M.; Rojo, A.; Galvan, M.: Structural transitions in the polyalanine a-Helix under uniaxial strain. Journal of the American Chemical Society 127, 49, pp. 17241 - 17244 (2005)
Northrup, J. E.; Neugebauer, J.: Metal-adlayer-stabilized ZnO(0001) sufaces: Towards a new growth mode for oxides. Applied Physics Letters 87, 141914 (2005)
Qteish, A.; Al-Sharif, A. I.; Fuchs, M.; Scheffler, M.; Boeck, S.; Neugebauer, J.: Role of semicore states in the electronic structure of group-III nitrides: An exact-exchange study. Physical Review B 72, 155317 (2005)
Qteish, A.; Al-Sharif, A. I.; Fuchs, M.; Scheffler, M.; Boeck, S.; Neugebauer, J.: Exact-exchange calculations of the electronic structure of AlN, GaN and InN. Computer Physics Communications 169, p. 28 (2005)
Smith, A. R.; Yang, R.; Yang, H. Q.; Dick, A.; Neugebauer, J.; Lambrecht, W. R. L.: Recent Advances in Atomic-Scale Spin-Polarized Scanning. Microscopy Research and Technology 66, pp. 72 - 84 (2005)
Alkauskas, A.; Deak, P.; Neugebauer, J.; Pasquarello, A.; van de Walle, C. G. (Eds.): Advanced Calculations for Defects in Materials: Electronic Structure Methods. WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim, Germany (2011), 384 pp.
Hildebrandt, S.; Lymperakis, L.; Neugebauer, J.; Stutzmann, M. (Eds.): Proceedings of the 6th International Conference of Nitride Semiconductors. Wiley-VCH - physica status solidi, Weinheim, Germany (2006), 203 pp.
Friák, M.; Raabe, D.; Neugebauer, J.: Ab Initio Guided Design of Materials. In: Structural Materials and Processes in Transportation, pp. 481 - 495 (Eds. Lehmhus, D.; Busse, M.; Herrmann, A. S.; Kayvantash, K.). Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim, Germany (2013)
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…
With the support of DFG, in this project the interaction of H with mechanical, chemical and electrochemical properties in ferritic Fe-based alloys is investigated by the means of in-situ nanoindentation, which can characterize the mechanical behavior of independent features within a material upon the simultaneous charge of H.
This project will aim at addressing the specific knowledge gap of experimental data on the mechanical behavior of microscale samples at ultra-short-time scales by the development of testing platforms capable of conducting quantitative micromechanical testing under extreme strain rates upto 10000/s and beyond.
Hydrogen embrittlement (HE) of steel is a great challenge in engineering applications. However, the HE mechanisms are not fully understood. Conventional studies of HE are mostly based on post mortem observations of the microstructure evolution and those results can be misleading due to intermediate H diffusion. Therefore, experiments with a…
The goal of this project is the investigation of interplay between the atomic-scale chemistry and the strain rate in affecting the deformation response of Zr-based BMGs. Of special interest are the shear transformation zone nucleation in the elastic regime and the shear band propagation in the plastic regime of BMGs.
Biological materials in nature have a lot to teach us when in comes to creating tough bio-inspired designs. This project aims to explore the unknown impact mitigation mechanisms of the muskox head (ovibus moschatus) at several length scales and use this gained knowledge to develop a novel mesoscale (10 µm to 1000 µm) metamaterial that can mimic the…
Microbiologically influenced corrosion (MIC) of iron by marine sulfate reducing bacteria (SRB) is studied electrochemically and surfaces of corroded samples have been investigated in a long-term project.