Asymmetric Hysteresis Loops and Horizontal Loop Shifts in Purely Ferromagnetic Nanoparticles

J. Detzmeier, K. Königer, A. Ehrmann, Materials Proceedings 4 (2021).

Artikel | Veröffentlicht | Englisch
Autor*in
Detzmeier, Joscha; Königer, Kevin; Ehrmann, AndreaFH Bielefeld
Abstract
Horizontally shifted and asymmetric hysteresis loops are often associated with exchange-biased samples, consisting of a ferromagnet exchange-coupled with an antiferromagnet. In purely ferromagnetic samples, such effects can occur due to undetected minor loops or thermal effects. Simulations of ferromagnetic nanostructures at zero temperature with sufficiently large saturation fields should not lead to such asymmetries. Here we report on micromagnetic simulations at zero temperature, performed on sputtered nanoparticles with different shapes. The small deviations of the systems due to random anisotropy orientations in the different grains can not only result in strong deviations of magnetization reversal processes and hysteresis loops, but also to distinctly asymmetric, horizontally shifted hysteresis loops in purely ferromagnetic nanoparticles.
Erscheinungsjahr
Zeitschriftentitel
Materials Proceedings
Band
4
Zeitschriftennummer
1
Artikelnummer
13
eISSN
FH-PUB-ID

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Detzmeier, Joscha ; Königer, Kevin ; Ehrmann, Andrea: Asymmetric Hysteresis Loops and Horizontal Loop Shifts in Purely Ferromagnetic Nanoparticles. In: Materials Proceedings Bd. 4, MDPI AG (2021), Nr. 1
Detzmeier J, Königer K, Ehrmann A. Asymmetric Hysteresis Loops and Horizontal Loop Shifts in Purely Ferromagnetic Nanoparticles. Materials Proceedings. 2021;4(1). doi:10.3390/IOCN2020-07836
Detzmeier, J., Königer, K., & Ehrmann, A. (2021). Asymmetric Hysteresis Loops and Horizontal Loop Shifts in Purely Ferromagnetic Nanoparticles. Materials Proceedings, 4(1). https://doi.org/10.3390/IOCN2020-07836
@article{Detzmeier_Königer_Ehrmann_2021, title={Asymmetric Hysteresis Loops and Horizontal Loop Shifts in Purely Ferromagnetic Nanoparticles}, volume={4}, DOI={10.3390/IOCN2020-07836}, number={113}, journal={Materials Proceedings}, publisher={MDPI AG}, author={Detzmeier, Joscha and Königer, Kevin and Ehrmann, Andrea}, year={2021} }
Detzmeier, Joscha, Kevin Königer, and Andrea Ehrmann. “Asymmetric Hysteresis Loops and Horizontal Loop Shifts in Purely Ferromagnetic Nanoparticles.” Materials Proceedings 4, no. 1 (2021). https://doi.org/10.3390/IOCN2020-07836.
J. Detzmeier, K. Königer, and A. Ehrmann, “Asymmetric Hysteresis Loops and Horizontal Loop Shifts in Purely Ferromagnetic Nanoparticles,” Materials Proceedings, vol. 4, no. 1, 2021.
Detzmeier, Joscha, et al. “Asymmetric Hysteresis Loops and Horizontal Loop Shifts in Purely Ferromagnetic Nanoparticles.” Materials Proceedings, vol. 4, no. 1, 13, MDPI AG, 2021, doi:10.3390/IOCN2020-07836.
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