Electrically controlled magnetization switching in a multiferroic heterostructure
Originally published in Applied Physics Letters 97, 052502 (2010). DOI:10.1063/1.3475417 (http://dx.doi.org/10.1063/1.3475417).
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.
Yajie Chen, Trifon Fitchorov, Carmine Vittoria, and V. G. Harris. "Electrically controlled magnetization switching in a multiferroic heterostructure" Electrical and Computer Engineering Faculty Publications (2010).
Available at: http://works.bepress.com/ychen/13