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Unconventional design of magnetic materials for high-efficient electric motors

1minút, 18sekúnd

In one of the recent studies of the Laboratory of ferromagnetism, the scientific team from the Faculty of Science of the UPJŠ in Košice was able to explain the magnetization process in unconventional topologies of grain-oriented electrical steels with a rotating distribution of easy axes of magnetization [1]. Despite the high complexity of the problem, the research team succeeded in characterizing and elucidating the physical origin of the enhancement of the magnetic properties in these structures in specific spatial orientations. The goal of these results is to design more energy-efficient magnetic components in high-performance electric motors, thereby contributing to the sustainable development of new technologies.

The main author of the publication is RNDr. Samuel Dobák, PhD. and co-authors doc. RNDr. Ján Füzer, PhD., prof. RNDr. Peter Kollár, DrSc. from the Institute of Physics, Faculty of Science, UPJŠ in Košice. This work was published in the renowned journal Applied Physics Letters and is registered in the prominent publication database Nature index [2], where it is also the publication with the largest authorship share of UPJŠ employees. Moreover, due to its high application potential, this study was selected by the editors of the journal as “Editor’s Pick” among particularly interesting publications.

[1] S. Dobák, J. Füzer, I. Petryshynets, P. Kollár, F. Kováč, Enhanced soft-to-hard magnetic switching ratio in grain-oriented Fe–Si cores induced by helical anisotropy, Appl. Phys. Lett. 123 (2023) 242406.

Vľavo: Left: Structure of investigated multilayer systems composed of grain-oriented electrical steel. Right: FORC diagram capturing the magnetization process.

Study at UPJŠ