Magnetoelectric coupling in ferromagnetic/ferroelectric heterostructures probed by polarised neutron reflectometry
Multiferroics are materials with more than one ferroic order parameter, such as ferromagnetism and ferroelectricity. The magnetoelectric (ME) coupling between these ferroic order parameters makes these materials potential candidates for electronic devices. In composite multiferroics, ferromagnetic/ferroelectric interfaces play a crucial role in mediating the ME coupling. The aim of this work is to study the magnetic depth profile of Fe (ferromagnetic) thin films on BaTiO3 (BTO, ferroelectric) substrates under the influence of an electric field. The use of polarized neutron reflectometry will provide us the opportunity to obtain information on the in-plane depth-distribution of the Fe magnetization as a function of the applied electric field and to find the effective ME coupling distance away from the interface. We will also study the effect of an electric field on the magnetization reversal mechanism of the Fe/BTO system using magnetic field scans.
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BISHT Manisha; COUET Sebastien; LAZENKA Vera; SAERBECK Thomas; TEMST Kristiaan; VAN BAEL MARGRIET and VANTOMME Andre. (2014). Magnetoelectric coupling in ferromagnetic/ferroelectric heterostructures probed by polarised neutron reflectometry. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.5-54-171
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