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Manipulating Topological States by Imprinting Non-Collinear Spin Textures

Title
Manipulating Topological States by Imprinting Non-Collinear Spin Textures
Author(s)
Streubel, RobertHan, LuyangIm, Mi-YoungKronast, FlorianRoessler, Ulrich K.Radu, FlorinAbrudan, RaduLin, GungunSchmidt, Oliver G.Fischer, PeterMakarov, Denys
Issued Date
2015-03
Citation
Scientific Reports, v.5
Type
Article
Keywords
BERRY PHASESKYRMIONSMICROSCOPYLATTICEREAL
ISSN
2045-2322
Abstract
Topological magnetic states, such as chiral skyrmions, are of great scientific interest and show huge potential for novel spintronics applications, provided their topological charges can be fully controlled. So far skyrmionic textures have been observed in noncentrosymmetric crystalline materials with low symmetry and at low temperatures. We propose theoretically and demonstrate experimentally the design of spin textures with topological charge densities that can be tailored at ambient temperatures. Tuning the interlayer coupling in vertically stacked nanopatterned magnetic heterostructures, such as a model system of a Co/Pd multilayer coupled to Permalloy, the in-plane non-collinear spin texture of one layer can be imprinted into the out-of-plane magnetised material. We observe distinct spin textures, e.g. vortices, magnetic swirls with tunable opening angle, donut states and skyrmion core configurations. We show that applying a small magnetic field, a reliable switching between topologically distinct textures can be achieved at remanence.
URI
http://hdl.handle.net/20.500.11750/2922
DOI
10.1038/srep08787
Publisher
Nature Publishing Group
Files in This Item:
10.1038_srep08787.pdf

10.1038_srep08787.pdf

기타 데이터 / 1.18 MB / Adobe PDF download
Appears in Collections:
ETC 1. Journal Articles

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