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Micromagnetic Simulations of Fe and Ni Nanodot Arrays Surrounded by Magnetic or Non-Magnetic Matrices

Faculty of Engineering and Mathematics, Bielefeld University of Applied Sciences, 33619 Bielefeld, Germany
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Academic Editor: Ana María Díez-Pascual
Nanomaterials 2021, 11(2), 349; https://doi.org/10.3390/nano11020349
Received: 21 December 2020 / Revised: 23 January 2021 / Accepted: 24 January 2021 / Published: 1 February 2021
Combining clusters of magnetic materials with a matrix of other magnetic materials is very interesting for basic research because new, possibly technologically applicable magnetic properties or magnetization reversal processes may be found. Here we report on different arrays combining iron and nickel, for example, by surrounding circular nanodots of one material with a matrix of the other or by combining iron and nickel nanodots in air. Micromagnetic simulations were performed using the OOMMF (Object Oriented MicroMagnetic Framework). Our results show that magnetization reversal processes are strongly influenced by neighboring nanodots and the magnetic matrix by which the nanodots are surrounded, respectively, which becomes macroscopically visible by several steps along the slopes of the hysteresis loops. Such material combinations allow for preparing quaternary memory systems, and are thus highly relevant for applications in data storage and processing. View Full-Text
Keywords: micromagnetic simulation; OOMMF; nanodots; antidots; array; spintronics micromagnetic simulation; OOMMF; nanodots; antidots; array; spintronics
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MDPI and ACS Style

Sudsom, D.; Ehrmann, A. Micromagnetic Simulations of Fe and Ni Nanodot Arrays Surrounded by Magnetic or Non-Magnetic Matrices. Nanomaterials 2021, 11, 349. https://doi.org/10.3390/nano11020349

AMA Style

Sudsom D, Ehrmann A. Micromagnetic Simulations of Fe and Ni Nanodot Arrays Surrounded by Magnetic or Non-Magnetic Matrices. Nanomaterials. 2021; 11(2):349. https://doi.org/10.3390/nano11020349

Chicago/Turabian Style

Sudsom, Devika; Ehrmann, Andrea. 2021. "Micromagnetic Simulations of Fe and Ni Nanodot Arrays Surrounded by Magnetic or Non-Magnetic Matrices" Nanomaterials 11, no. 2: 349. https://doi.org/10.3390/nano11020349

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