Eur. Phys. J. Appl. Phys.
Volume 45, Number 3, March 2009
|Number of page(s)||5|
|Section||Spintronics, Magnetism and Superconductivity|
|Published online||06 February 2009|
Microwave magnetoelectric effects in bilayer of ferrite and piezoelectric
Department of Design and Technology of Radio Equipment, Novgorod State University,
173003 Veliky Novgorod, Russia
Corresponding author: Vladimir.Petrov@novsu.ru
Revised: 2 December 2008
Accepted: 5 January 2009
Published online: 6 February 2009
The present paper focuses on magnetoelectric (ME) interactions under ferromagnetic resonance (FMR) in a bilayer of a ferrite and a piezoelectric. Applying a dc electric field perpendicular to the sample plane induces a uniaxial magnetic anisotropy. The effects of flexural deformation and substrate clamping have been considered in determining the electric field induced FMR line shift. The obtained model is applied to a specific case of yttrium iron garnet/lead magnesium niobate-lead titanate. Our studies indicate that flexural deformation gives rise to a decrease in the strength of ME interaction for a free standing bilayer. The substrate thickness dependence of FMR line shift reveals a maximum for the substrate thickness that is approximately equal to that of the bilayer.
PACS: 75.80.+q – Magnetomechanical and magnetoelectric effects, magnetostriction / 78.67.Pt – Multilayers; superlattices / 76.50.+g – Ferromagnetic, antiferromagnetic, and ferrimagnetic resonances; spin-wave resonance
© EDP Sciences, 2009
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