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American Institute of Physics, Applied Physics Letters, 1(104), p. 012401

DOI: 10.1063/1.4860963

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Electric field driven magnetic domain wall motion in ferromagnetic-ferroelectric heterostructures

Journal article published in 2014 by Ben Van de Wiele, Lasse Laurson ORCID, Kévin J. A. Franke, Sebastiaan van Dijken
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This paper is available in a repository.

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Abstract

We investigate magnetic domain wall (MDW) dynamics induced by applied electric fields in ferromagnetic-ferroelectric thin-film heterostructures. In contrast to conventional driving mechanisms where MDW motion is induced directly by magnetic fields or electric currents, MDW motion arises here as a result of strong pinning of MDWs onto ferroelectric domain walls (FDWs) via local strain coupling. By performing extensive micromagnetic simulations, we find several dynamical regimes, including instabilities such as spin wave emission and complex transformations of the MDW structure. In all cases, the time-averaged MDW velocity equals that of the FDW, indicating the absence of Walker breakdown. ; Peer reviewed