Issue Eur. Phys. J. Appl. Phys. Volume 45, Number 3, March 2009 Article Number 30801 Number of page(s) 5 Section Spintronics, Magnetism and Superconductivity DOI 10.1051/epjap/2009013 Published online 06 February 2009

Eur. Phys. J. Appl. Phys. 45, 30801 (2009)
DOI: 10.1051/epjap/2009013

Microwave magnetoelectric effects in bilayer of ferrite and piezoelectric

M.I. Bichurin, V.M. Petrov and T.A. Galkina

Department of Design and Technology of Radio Equipment, Novgorod State University, 173003 Veliky Novgorod, Russia

Vladimir.Petrov@novsu.ru

Received: 24 September 2008 / Received in final form: 2 December 2008 / Accepted: 5 January 2009 / Published online: 6 February 2009

Abstract
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.

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