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)
Marquardt, O.; Wahn, M.; Lymperakis, L.; Hickel, T.; Neugebauer, J.: Implementation and application of a multi-scale approach to electronic properties of group III-nitride based semiconductor nanostructures. Workshop on Nitride Based Nanostructures, Berlin, Germany (2007)
Neugebauer, J.; Wahn, M.: Exact exchange within Kohn-Sham formalism. Standard and variational approach. 1. Harzer Ab initio Workshop, Clausthal-Zellerfeld (2006)
Wahn, M.; Neugebauer, J.: The Bandgaps of GaN and InN in Zinc-blende and Wurtzite Phase: DFT Calculations Using the Exact Exchange (EXX) Functional. Workshop Forschergruppe Bremen, Bad Bederkesa, Germany (2005)
Wahn, M.; Neugebauer, J.: Generalized Wannier functions: An accurate and efficient way to construct ab-initio tight-binding orbitals. DPG-Tagung, Berlin, Germany (2005)
Wahn, M.; Neugebauer, J.: Generalized Wannier Functions: An efficient way to construct ab-initio tight-binding orbitals for group-III nitrides. 6th International Conference on Nitride Semiconductors, Bremen, Germany (2005)
International researcher team presents a novel microstructure design strategy for lean medium-manganese steels with optimized properties in the journal Science
In this project, we study the atomistic structure and phase transformations of tilt grain boundaries in Cu by using aberration-corrected scanning transmission electron microscope to build a relation to the transport properties of the grain boundaries via macroscopic tracer diffusion experiments. In the meantime, we address the impact of the grain…
Because of their excellent corrosion resistance, high wear resistance and comparable low density, Fe–Al-based alloys are an interesting alternative for replacing stainless steels and possibly even Ni-base superalloys. Recent progress in increasing strength at high temperatures has evoked interest by industries to evaluate possibilities to employ…
The goal of this project is to optimize the orientation mapping technique using four-dimensional scanning transmission electron microscopy (4D STEM) in conjunction with precession electron diffraction (PED). The development of complementary metal oxide semiconductor (CMOS)-based cameras has revolutionized the capabilities in data acquisition due to…
The nano-structure of surfaces influences the interactions and reactions occurring on it, which has strong impacts for applications in diverse fields, such as wetting phenomena, electrochemistry or biotechnology. We study these nanoscale structures on functional interfaces by nano-spectroscopy. Furthermore we try to understand their influence on…