Ing. Dr. Harald Özelt, MSc

Danube University Krems

Ing. Dr. Harald Özelt, MSc

Center for Modeling and Simulating

About the person

After graduating from HTBLuVA in St. Pölten in 2002, Harald Özelt began his career as an electrical engineer in project management. In search of new challenges, he began his studies at the St. Pölten University of Applied Sciences in 2007. He received his Bachelor degree with distinction in Communication & Simulation Engineering in 2010 and his Master degree with distinction in Industrial Simulation 2012. The research topic of the Master thesis was the characterization of NdFeB permanent magnets, where new software tools for the simulation and optimization of permanent magnets were developed. During his studies he worked in the research team of Thomas Schrefl at the St. Pölten University of Applied Sciences from 2010 on finite element models and simulations of magnetic materials. In 2015, he moved to the Center for Modeling and Simulation at the Department for Integrated Sensor Systems at the Danube University Krems in Wr. Neustadt, where he focused on simulations of magnetic materials for heat-assisted magnetic recording and rare-earth efficient permanent magnets. In 2019, he received his PhD in technical sciences (Dr. techn.) with distinction from the Vienna University of Technology. The topic of his dissertation was the micromagnetic simulation of exchange-coupled ferric/ferromagnetic composites. Since then he has been working as a postdoctoral researcher on stochastic micromagnetic simulations and the effect of interfaces on magnetization reversal.

Publications (Extract Research Database)

Arapan, S.; Nieves, P.; Cuesta-López, S.; Gusenbauer, M.; Oezelt, H.; Schrefl, T.; Delczeg-Czirjak, E. K.; Herper, H. C.; Eriksson, O. (2019). Influence of antiphase boundary of the MnAl t-phase on the energy product. Physical Review Materials, Vol. 3, iss. 6: 064412

Exl, L.; Fischbacher, J.; Kovacs, A.; Oezelt, H.; Gusenbauer, M.; Schrefl, T. (2019). Preconditioned nonlinear conjugate gradient method for micromagnetic energy minimization. Computer Physics Communications, 235: 179/https://doi.org/10.1016/j.cpc.2018.09.004

Gusenbauer, M.; Fischbacher, J.; Kovacs, A.; Oezelt, H.; Bance, S.; Zhao, P.; Woodcock, T.G.; Schrefl, T. (2019). Automated meshing of electron backscatter diffraction data and application to finite element micromagnetics. Journal of Magnetism and Magnetic Materials, Volume 486: 165256

Exl, L.; Fischbacher, J.; Kovacs, A.; Oezelt, H.; Gusenbauer, M.; Yokota, K.; Shoji, T., Hrkac, G.; Schrefl, T.; (2018). Magnetic microstructure machine learning analysis. JPhys Materials, 2: 014001/https://doi.org/10.1088/2515-7639/aaf26d

Fischbacher, J.; Kovacs, A.; Gusenbauer, M.; Oezelt, H.; Exl, L.; Bance, S.; Schrefl, T. (2018). Micromagnetics of rare-earth efficient permanent magnets. Journal of Physics D: Applied Physics, Vol. 51, no. 19: 193002-193019

Fischbacher, J.; Kovacs, A.; Oezelt, H.; Gusenbauer, M.; Schrefl, T.; Exl, L.; Givord, D.; Dempsey, N. M.; Winklhofer, M.; Hrkac, G.; Chantrell, R.; Sakuma, N.; Yano, M.; Kato, A.; Shoji, T.; Manabe, A. (2017). On the limits of coercivity in permanent magnets. Applied Physics Letters, 111(7): 072404

Fischbacher, J.; Kovacs, A.; Oezelt, H.; Gusenbauer, M.; Suess, D.; Schrefl, T. (2017). Effective uniaxial anisotropy in easy-plane materials through nanostructuring. Applied Physics Letters, 111(19): 192407

Fischbacher, J.; Kovacs, A.; Oezelt, H.; Schrefl, T.; Exl, L.; Fidler, J.; Suess, D.; Sakuma, N.; Yano, M.; Kato, A.; Shoji, T.; Manabe, A. (2017). Nonlinear conjugate gradient methods in micromagnetics. AIP Advances, 7(4): 045310

Kovacs, A.; Fischbacher, J.; Oezelt, H.; Schrefl, T.; Kaidatzis, A.; Salikhov, R.; Farle, M.; Giannopoulus, G.; Niarchos, D. (2017). Micromagnetic Simulations for Coercivity Improvement Through Nano-Structuring of Rare-Earth-Free L10-FeNi Magnets. IEEE Transactions on Magnetics, 53(11): DOI: 10.1109/TMAG.2017.2701418

Oezelt, H.; Kirk, E.; Wohlhüter, P.; Müller, E.; Heyderman, L.; Kovacs, A.; Schrefl, T. (2017). Vortex motion in amorphous ferrimagnetic thin film elements. AIP Advances, 7(5): https://doi.org/10.1063/1.4973295

Oezelt, H.; Kovacs, A.; Fischbacher, J.; Bance, S.; Gubbins, M.; Schrefl, T. (2017). Transition Jitter in Heat-Assisted Magnetic Recording by Micromagnetic Simulation. IEEE Transactions on Magnetics, 53(11): DOI: 10.1109/TMAG.2017.2709840

Kovacs, A.; Oezelt, H.; Schabes, M.; Schrefl, T. (2016). Numerical optimization of writer and media for bit patterned magnetic recording. Journal of Applied Physics, 120(1): 8

Oezelt, H.; Kirk, E.; Wohlhüter, P.; Müller, E.; Heydermann, L.; Kovacs, A.; Schrefl, T. (2016). Vortex motion in amorphous ferrimagnetic thin film elements. AIP Advances, 7(5): 560011-560015

Oezelt, H.; Kovacs, A.; Fischbacher, J.; Matthes, P.; Kirk, E.; Wohlhueter, P.; Heyderman, L.; Albrecht, M.; Schrefl, T. (2016). Switching field distribution of exchange coupled ferri-/ferromagnetic composite bit patterned media. Journal of Applied Physics, 120(9): 093904

Windl, R.; Bruckner, F.R.; Albert, C.; Huber, C.; Vogler, C.; Huber, T.; Oezelt, H.; Suess, D. (2016). Passive wireless strain measurement based upon the Villari effect and giant magnetoresistance. Applied Physics Letters, 109: 2535021-2535024, CrossMark

Bance, S.; Fischbacher, J.; Kovacs, A.; Özelt, H.; Reichel, F.; Schrefl, T. (2015). Thermal Activation in Permanent Magnets. Springer, JOM: 1350-56

Oezelt, H.; Kovacs, A.; Reichel, F.; Fischbacher, J.; Bance, S.; Gusenbauer, M.; Schubert, C.; Albrecht, M.; Schrefl, T. (2015). Micromagnetic simulation of exchange coupled ferri-/ferromagnetic heterostructures. Journal of Magnetism and Magnetic Materials: 28-33

Oezelt, H.; Kovacs, A.; Wohlhueter, P.; Kirk, E.; Nissen, D.; Matthes, P.; Heyderman, L.J.; Albrecht, M.; Schrefl, T. (2015). Micromagnetic simulation of exchange coupled ferri-/ferromagnetic composite in bit patterned media. Journal of Applied Physics, Vol. 117, No. 17

Lectures (Extract Research Database)

Renormalization of the intrinsic magnetic propertiesfor stochastic micromagnetics

Working Group on "Micromagnetics of Permanent Magnets", Wien, Österreich, 14/10/2019

Ferromagnetic resonance simulations for stochastic Landau-Lifshitz-Gilbert equation

The Joint European Magnetic Symposia (JEMS), Uppsala, Sweden, 29/08/2019

Micromagnetic characterization of MnAl-C using trained neural networks

JEMS2019, Uppsala, Schweden, 29/08/2019

Exchange-Coupled Ferri-/Ferromagnetic Composite Nanomagnets

Rigorosum Harald Özelt, Wien, Österreich, 16/01/2019

Vortex Motion in Amorphous Ferrimagnetic Thin Film Elements

61st Annual Conference on Magnetism and Magnetic Materials - MMM 2016, New Orleans, Louisiana, USA, 31. Oct. - 4. Nov. 2016, 03/11/2016

Micromagnetic simulations for switching field distribution of ferri- /ferromagnetic composite bit patterned media

1st IEEE Conference Advances in Magnetics - AIM 2016, Bormio, Italy, March 14-16 2016, 15/03/2016

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