Lymperakis, L.; Neugebauer, J.: Thermodynamics and adatom kinetics of non-polar GaN surfaces. Spring meeting of the German Physical Society (DPG), Berlin, Germany (2008)
Petrov, M.; Lymperakis, L.; Neugebauer, J.; Stefaniuk, R.; Dluzewski, P.: Nonlinear Elastic Effects in Group III-Nitrides: From ab-initio to Finite Element Calculation. 17th International Conference on Computer Methods in Mechanics CMM-2007, Spala, Poland (2007)
Petrov, M.; Lymperakis, L.; Neugebauer, J.; Stefaniuk, R.; Dluzewski, P.: Nonlinear Elastic Effects in Group III-Nitrides: From ab-initio to Finite Element Calculation. 17th International Conference on Computer Methods in Mechanics CMM-2007, Spala, Poland (2007)
Lymperakis, L.; Neugebauer, J.: Ab-initio based multiscale analysis of the 5D configurational space of Grain Boundaries in Aluminum. Spring meeting of the German Physical Society (DPG), Regensburg, Germany (2007)
Petrov, M.; Lymperakis, L.; Neugebauer, J.: Nonlinear Elastic Effects in Group III-Nitrides. Spring meeting of the German Physical Society (DPG), Regensburg, Germany (2007)
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)
Lymperakis, L.: Ab-initio based multiscale caclulations of Grain Boundaries in aluminum. 1. Harzer Ab initio Workshop, Clausthal-Zellerfeld, Germany (2006)
Lymperakis, L.; Neugebauer, J.: Kinetically stabilized ordering in AlGaN alloys. Institute of Fundamental Technological Research, Polish Academy of Sciences, Colloquium, Warsaw/Poland (2006)
Lymperakis, L.; Neugebauer, J.: Ab-initio based multiscale calculations of low-angle grain boundaries in Aluminum. DPG spring meeting, Dresden, Germany (2006)
Lymperakis, L.: Ab-initio based multiscale calculations of extended defects in condensed matter. Ab initio Description of Iron and Steel (ADIS2006), Ringberg Castle (2006)
Lymperakis, L.; Neugebauer, J.: Electronic properties of non-stoichiometric dislocation cores in GaN. Materials Research Society fall meeting, Boston, MA, USA (2005)
Lymperakis, L.; Neugebauer, J.: The role of strain fields, core structure, and native defects on the electrical activity of dislocations in GaN. The 6th International Conference on Nitride Semiconductors, Bremen (2005)
Lymperakis, L.; Neugebauer, J.: Formation of steps and vicinal surfaces on GaN (0001) surfaces: Implications on surface morphologies and surface roughening. DPG spring meeting, Berlin, Germany (2005)
Duff, A.; Lymperakis, L.; Neugebauer, J.: Limits of Indium Incorporation on In1-xGaxN {0001} III- and N-Polar Surfaces: An Ab Initio Approach. 10th International Conference on Nitride Semiconductors, Washigton DC, USA (2013)
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 employ atomistic computer simulations to study grain boundaries. Primarily, molecular dynamics simulations are used to explore their energetics and mobility in Cu- and Al-based systems in close collaboration with experimental works in the GB-CORRELATE project.
This project is a joint project of the De Magnete group and the Atom Probe Tomography group, and was initiated by MPIE’s participation in the CRC TR 270 HOMMAGE. We also benefit from additional collaborations with the “Machine-learning based data extraction from APT” project and the Defect Chemistry and Spectroscopy group.
In this ongoing project, we investigate spinodal fluctuations at crystal defects such as grain boundaries and dislocations in Fe-Mn alloys using atom probe tomography, electron microscopy and thermodynamic modeling [1,2].