Microwave magnetoelectric effects in single crystal bilayers of yttrium iron garnet and lead magnesium niobate-lead titanate

By S. Shastry, Girish Srinivasan, M. I.Bichurin, V. Petrov, A.S.Tatarenko. 2004

188 citations recorded by the source corpus.

The first observation of microwave magnetoelectric (ME) interactions through ferromagnetic resonance (FMR) in bilayers of single crystal ferromagnetic-piezoelectric oxides and a theoretical model for the effect are presented. An electric field $E$ produces a mechanical deformation in the piezoelectric phase, resulting in a shift $\ensuremath{\delta}{H}_{E}$ in the resonance field for the ferromagnet. The strength of ME coupling is obtained from data on $\ensuremath{\delta}{H}_{E}$ vs $E$. Studies were performed at $9.3\phantom{\rule{0.3em}{0ex}}\mathrm{GHz}$ on bilayers of (111) yttrium iron garnet (YIG) films and (001) lead magnesium niobate-lead titanate (PMN-PT). The samples were positioned outside a ${\mathrm{TE}}_{102}$-reflection type cavity. Resonance profiles were obtained for $E=0\char21{}8\phantom{\rule{0.3em}{0ex}}\mathrm{kV}∕\mathrm{cm}$ for both in-plane and out-of-plane magnetic fields $H$. Important results are as follows. (i) The ME coupling in the bilayers is an order of magnitude stronger than in polycrystalline composites and is in the range $1\char21{}5.4\phantom{\rule{0.3em}{0ex}}\mathrm{Oe}\phantom{\rule{0.3em}{0ex}}\mathrm{cm}∕\mathrm{kOe}$, depending on the YIG film thickness. (ii) The coupling strength is dependent on the magnetic field orientation and is higher for out-of-plane $H$ than for in-plane $H$. (iii) Estimated ME constant and its dependence on volume ratio for the two phases are in good agreement with the data.

Subfields: Biomedical Engineering, Electronic, Optical and Magnetic Materials, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/7f6c31b1243c89b245b3a6bbdf2558c9d24fa4de

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Biomedical Engineering

1. C. Eom
2. Ramamoorthy Ramesh
3. N. Spaldin

In Electronic, Optical and Magnetic Materials

1. Ramamoorthy Ramesh
2. Y. Chu
3. N. Spaldin
4. C. Eom
5. C. Ederer
6. M. Cruz
7. F. Zavaliche
8. T. Zhao

In Materials Chemistry

1. Ramamoorthy Ramesh
2. Y. Chu
3. N. Spaldin
4. C. Eom
5. C. Ederer
6. L. Martin
7. Darrell Schlom
8. S. May

Citations in the corpus

• Electrical control of antiferromagnetic domains in multiferroic BiFeO3 films at room temperature (2006, background): “Several composite materials, consisting of separate piezoelectric and magnetic phases, have been reported to show magnetoelectric coupling at room temperatur”