Mechanically driven domain wall movement in magnetoelastic nanomagnets

Théo Mathurin, Stefano Giordano (), Yannick Dusch, Nicolas Tiercelin, Philippe Pernod and Vladimir Preobrazhensky
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Théo Mathurin: International Associated Laboratory LEMAC/LICS: IEMN, UMR CNRS 8520, ComUE Lille Nord de France, ECLille
Stefano Giordano: International Associated Laboratory LEMAC/LICS: IEMN, UMR CNRS 8520, ComUE Lille Nord de France, ECLille
Yannick Dusch: International Associated Laboratory LEMAC/LICS: IEMN, UMR CNRS 8520, ComUE Lille Nord de France, ECLille
Nicolas Tiercelin: International Associated Laboratory LEMAC/LICS: IEMN, UMR CNRS 8520, ComUE Lille Nord de France, ECLille
Philippe Pernod: International Associated Laboratory LEMAC/LICS: IEMN, UMR CNRS 8520, ComUE Lille Nord de France, ECLille
Vladimir Preobrazhensky: International Associated Laboratory LEMAC/LICS: IEMN, UMR CNRS 8520, ComUE Lille Nord de France, ECLille

The European Physical Journal B: Condensed Matter and Complex Systems, 2016, vol. 89, issue 7, 1-17

Abstract: Abstract Magnetic domain walls are fundamental objects arising in ferromagnetic materials, largely investigated both through micromagnetic simulations and experiments. While current- and field-based techniques for inducing domain wall propagation have been widely studied for fundamental understanding and application-oriented purposes, the possibility to manipulate domain walls using mechanical stress in magnetoelastic materials has only recently drawn interest. Here, a complete analytical model describing stress-induced transverse domain wall movement in ferromagnetic nanostripe with variable cross-section is presented. This approach yields a nonlinear integro-differential equation describing the magnetization field. Its numerical implementation, based on the nonlinear relaxation method, demonstrates the possibility to precisely control the position of a domain wall through mechanical action.

Keywords: Solid; State; and; Materials (search for similar items in EconPapers)
Date: 2016
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DOI: 10.1140/epjb/e2016-70226-0

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