Stray field signatures of Néel textured skyrmions in Ir/Fe/Co/Pt multilayer films

Stray field signatures of Néel textured skyrmions in Ir/Fe/Co/Pt multilayer films

Skyrmions are nanoscale spin configurations with topological properties that hold great promise for spintronic devices. Here, we establish their Néel texture, helicity, and size in Ir/Fe/Co/Pt multilayer films by constructing a multipole expansion to model their stray field signatures and applying i...

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Bibliographic Details
Main Authors: Yagil, A., Almoalem, A., Soumyanarayanan, Anjan, Tan, Anthony K. C., Raju, M., Panagopoulos, Christos, Auslaender, O. M.
Other Authors: School of Physical and Mathematical Sciences
Format: Article
Language:English
Published: 2019
Subjects:
Skyrmions
Multilayer Films
DRNTU::Science::Physics
Online Access:https://hdl.handle.net/10356/88384
http://hdl.handle.net/10220/47611
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Institution: Nanyang Technological University
Language: English
Description
Summary:Skyrmions are nanoscale spin configurations with topological properties that hold great promise for spintronic devices. Here, we establish their Néel texture, helicity, and size in Ir/Fe/Co/Pt multilayer films by constructing a multipole expansion to model their stray field signatures and applying it to magnetic force microscopy images. Furthermore, the demonstrated sensitivity to inhomogeneity in skyrmion properties, coupled with a unique capability to estimate the pinning force governing dynamics, portend broad applicability in the burgeoning field of topological spin textures.

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