Fast, semianalytical approach to obtain the stray magnetic field above a magnetic skyrmion

Title: Fast, semianalytical approach to obtain the stray magnetic field above a magnetic skyrmion
Creator: Stuart, Alexandra R.; Livesey, Karen L.; Buchanan, Kristen S.
Relation: Physical Review B Vol. 105, Issue 14, no. 144430
Publisher Link: http://dx.doi.org/10.1103/PhysRevB.105.144430
Publisher: American Physical Society
Resource Type: journal article
Date: 2022
Description: We present a fast, matrix-based semianalytical method to calculate the stray magnetic field and its derivative above spin textures with cylindrical symmetry. A magnetostatic Green's function approach is used to obtain accurate fields and magnetic forces, which are confirmed using micromagnetic simulations. The developed method can be used to quickly analyze and fit experimental measurements of the stray magnetic field (measured, for example, via nitrogen vacancies in diamond) or magnetic forces (measured via magnetic force microscopy) above a thin film or patterned element. Calculations for magnetic skyrmions show that these techniques have the potential to distinguish between Bloch and Néel walls for skyrmions in single-layer as well as in multilayer thin films where the wall structure evolves with depth.
Subject: matrix-based semianalytical method; magnetostatic; magnetic forces; skyrmions
Identifier: http://hdl.handle.net/1959.13/1487629
Identifier: uon:52203
Identifier: ISSN:2469-9950
Language: eng
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