Asymmetric Hysteresis Loops in Structured Ferromagnetic Nanoparticles with Hard/Soft Areas

J. Detzmeier, K. Königer, T. Blachowicz, A. Ehrmann, Nanomaterials 11 (2021).

Artikel | Veröffentlicht | Englisch
Autor*in
Detzmeier, Joscha; Königer, Kevin; Blachowicz, Tomasz; 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 structures. 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 lead to distinctly asymmetric, horizontally shifted hysteresis loops in purely ferromagnetic nanoparticles.
Erscheinungsjahr
Zeitschriftentitel
Nanomaterials
Band
11
Zeitschriftennummer
3
Artikelnummer
800
eISSN
FH-PUB-ID

Zitieren

Detzmeier, Joscha ; Königer, Kevin ; Blachowicz, Tomasz ; Ehrmann, Andrea: Asymmetric Hysteresis Loops in Structured Ferromagnetic Nanoparticles with Hard/Soft Areas. In: Nanomaterials Bd. 11, MDPI AG (2021), Nr. 3
Detzmeier J, Königer K, Blachowicz T, Ehrmann A. Asymmetric Hysteresis Loops in Structured Ferromagnetic Nanoparticles with Hard/Soft Areas. Nanomaterials. 2021;11(3). doi:10.3390/nano11030800
Detzmeier, J., Königer, K., Blachowicz, T., & Ehrmann, A. (2021). Asymmetric Hysteresis Loops in Structured Ferromagnetic Nanoparticles with Hard/Soft Areas. Nanomaterials, 11(3). https://doi.org/10.3390/nano11030800
@article{Detzmeier_Königer_Blachowicz_Ehrmann_2021, title={Asymmetric Hysteresis Loops in Structured Ferromagnetic Nanoparticles with Hard/Soft Areas}, volume={11}, DOI={10.3390/nano11030800}, number={3800}, journal={Nanomaterials}, publisher={MDPI AG}, author={Detzmeier, Joscha and Königer, Kevin and Blachowicz, Tomasz and Ehrmann, Andrea}, year={2021} }
Detzmeier, Joscha, Kevin Königer, Tomasz Blachowicz, and Andrea Ehrmann. “Asymmetric Hysteresis Loops in Structured Ferromagnetic Nanoparticles with Hard/Soft Areas.” Nanomaterials 11, no. 3 (2021). https://doi.org/10.3390/nano11030800.
J. Detzmeier, K. Königer, T. Blachowicz, and A. Ehrmann, “Asymmetric Hysteresis Loops in Structured Ferromagnetic Nanoparticles with Hard/Soft Areas,” Nanomaterials, vol. 11, no. 3, 2021.
Detzmeier, Joscha, et al. “Asymmetric Hysteresis Loops in Structured Ferromagnetic Nanoparticles with Hard/Soft Areas.” Nanomaterials, vol. 11, no. 3, 800, MDPI AG, 2021, doi:10.3390/nano11030800.
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