Pfanner, G.; Freysoldt, C.; Neugebauer, J.: EPR parameters of the dangling bond defect in crystalline and amorphous silion: A DFT-study. DPG spring meeting 2011, Dresden, Germany (2011)
Freysoldt, C.: Fully ab initio finite-size corrections for electrostatic artifacts in charged-defect supercell calculations. Psi-k Conference 2010, Berlin, Germany (2010)
Freysoldt, C.; Neugebauer, J.; Van de Walle, C. G.: Charged defects in the supercell approach. Seminar at Duisburg University, Duisburg, Germany (2010)
Freysoldt, C.; Neugebauer, J.; Van de Walle, C. G.: Charged defects in the supercell approach. Seminar at Fritz-Haber-Institut der MPG, Berlin, Germany (2010)
Freysoldt, C.; Neugebauer, J.: Fully ab initio finite size corrections for charged defects in the supercell approach. APS march meeting, Portland, OR, USA (2010)
Mitra, C.; Freysoldt, C.; Neugebauer, J.: Band alignment in the framework of GW theory. Computational Materials Science on Complex Energy Landscapes Workshop, Imst, Austria (2010)
Pfanner, G.; Freysoldt, C.; Neugebauer, J.: Ab initio investigations of the silicon dangling bond. Computational Materials Science on Complex Energy Landscapes Workshop, Imst, Austria (2010)
Freysoldt, C.; Neugebauer, J.: Theory of defect distribution at semiconductor interfaces based on ab-initio thermodynamics. MRS Fall Meeting, Boston, MA, USA (2009)
Freysoldt, C.; Neugebauer, J.: Calculation of defect distribution at interfaces from ab-initio-based thermodynamic data. MRS Fall Meeting, Boston, MA, USA (2009)
Lange, B.; Freysoldt, C.; Neugebauer, J.: Highly p-doped GaN:Mg! What hinders the thermal drive-out of hydrogen? 2. Klausurtagung des Graduierten Kollegs: Mikro und Nanostrukturen in der Optoelektronik, Bad Karlshafen, Germany (2009)
Freysoldt, C.; Pfanner, G.; Neugebauer, J.: What can EPR hyperfine parameters tell about the Si dangling bond? - A theoretical study. International conference on amorphous and nanoporous semiconductors (ICANS) 23, Utrecht, Netherlands (2009)
Freysoldt, C.; Neugebauer, J.; Van de Walle, C. G.: Fully ab initio supercell corrections for charged defects. CECAM workshop "Which Electronic Structure Method for the Study of Defects?", Lausanne, Switzerland (2009)
Freysoldt, C.; Pfanner, G.; Neugebauer, J.: What can EPR hyperfine parameters tell about the Si dangling bond? - A theoretical viewpoint. 1st International Workshop on the Staebler-Wronski effect, Berlin, Germany (2009)
Lange, B.; Freysoldt, C.; Neugebauer, J.: Role of the parasitic Mg3N2 phase in post-growth activation of p-doped Mg:GaN. DPG Frühjahrstagung, TU Dresden, Germany (2009)
International researcher team presents a novel microstructure design strategy for lean medium-manganese steels with optimized properties in the journal Science
Oxides find broad applications as catalysts or in electronic components, however are generally brittle materials where dislocations are difficult to activate in the covalent rigid lattice. Here, the link between plasticity and fracture is critical for wide-scale application of functional oxide materials.
The fracture toughness of AuXSnY intermetallic compounds is measured as it is crucial for the reliability of electronic chips in industrial applications.
In this project we work on correlative atomic structural and compositional investigations on Co and CoNi-based superalloys as a part of SFB/Transregio 103 project “Superalloy Single Crystals”. The task is to image the boron segregation at grain boundaries in the Co-9Al-9W-0.005B alloy.
This project aims to investigate the dynamic hardness of B2-iron aluminides at high strain rates using an in situ nanomechanical tester capable of indentation up to constant strain rates of up to 100000 s−1 and study the microstructure evolution across strain rate range.