Book/Dissertation / PhD Thesis

FZJ-2022-04889

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Diversity of chiral magnetic solitons

Kuchkin, V. (Corresponding author)FZJ*

2022
Forschungszentrum Jülich GmbH Zentralbibliothek, Verlag Jülich
ISBN: 978-3-95806-665-6

Please use a persistent id in citations: http://hdl.handle.net/2128/32882

Abstract: This thesis is devoted to the theoretical study of chiral ferromagnets [1]. The main properties of any ferromagnet are usually defined by the competition of Heisenberg exchange interaction with the other energy terms, e.g., anisotropy or demagnetizing fields. In the case of chiral ferromagnets, the key energy term is the Dzyaloshinskii-Moria interaction (DMI). The interplay between exchange interaction and DMI leads to many exciting properties distinguishing chiral magnets from many other magnetic systems. One of the most thrilling properties of chiral magnets is their ability to host an extraordinary wide diversity of stable well-localized vortex-like spin textures, also known as skyrmions (Sk). They are magnetic solitons – solutions of the corresponding non-linear model of chiral magnet [2] which is akin to a similar model in nuclear physics developed by Tony Skyrme [3]. Currently, Sks are under intensive study by different scientific groups and are the “hot topic” of modern magnetism. The high attention to Sks is heated up by their possible utilization in computational devices. For instance, Sks have excellent potential forapplication in neuromorphic and reservoir computing. Additionally, investigation of Sks is of academic interest, allowing us to extend our knowledge about non-linear models and solitons in general.

Note: Dissertation, RWTH Aachen University, 2022

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Contributing Institute(s):

1. Quanten-Theorie der Materialien (PGI-1)
2. Quanten-Theorie der Materialien (IAS-1)

Research Program(s):

1. 5211 - Topological Matter (POF4-521) (POF4-521)

Appears in the scientific report 2022

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