Abstract
A demonstration of magnetization reversal via the application of electric field across a multiferroic heterostructure, consisting of a FeCoV ribbon bonded to a lead magnesium niobate-lead titanate crystal, is presented. The magnetization switching occurs by an abrupt change in magnetization near ferromagnetic coercivity, coinciding with an electrical field-induced magnetic anisotropy field. Experiments reveal a converse magnetoelectric coupling of α=μ0 (dM/dE) = 1.6 x 10-7 s m-1 upon magnetization reversal in the strain-mediated heterostructure. The frequency dependence of magnetization switching is presented and explained within the framework of a relaxation model for the multiferroic heterostructure.
Keywords
FeCoV, lead magnesium niobate lead titanate crystal
Subject Categories
Thin films, Ferromagnetism, Heterostructures, Magnetization, Electric fields, Anisotropy
Disciplines
Electromagnetics and photonics
Publisher
American Institute of Physics
Publication Date
8-1-2010
Rights Information
Copyright 2010 American Institute of Physics.
Rights Holder
American Institute of Physics
Permanent URL
Recommended Citation
Chen, Yajie; Fitchorov, Trifon; Vittoria, Carmine; and Harris, V. G., "Electrically controlled magnetization switching in a multiferroic heterostructure" (2010). Electrical and Computer Engineering Faculty Publications. Paper 39. http://hdl.handle.net/2047/d20002209
Figure 1
electrically_controlled_fig2.zip (61 kB)
Figure 2
electrically_controlled_fig3.zip (34 kB)
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Additional Files
electrically_controlled_fig1.zip (65 kB)Figure 1
electrically_controlled_fig2.zip (61 kB)
Figure 2
electrically_controlled_fig3.zip (34 kB)
Figure 3
Notes
Originally published in Applied Physics Letters 97, 052502 (2010). DOI:10.1063/1.3475417 (http://dx.doi.org/10.1063/1.3475417).