Abstract

Magnetoelectric interactions as a function of applied electric field have been studied in ferrite-ferroelectric heterostructures at microwave frequencies. The measurements are performed on 1.5–2.0 μm thick nickel ferrite (NiFe₂O₄) films grown heteroepitaxially on lead zinc niobate-lead titanate and lead magnesium niobate-lead titanate substrates using direct liquid injection chemical vapor deposition. Large shifts in the ferromagnetic resonance profile are observed in these heterostructures due to strong magnetoelectric coupling resulting from electrostatic field induced changes in the magnetic anisotropy field. Theoretical estimates of field shifts are in good agreement with the experimental data.

Notes

Originally published in Applied Physics Letters v.99 (2011), 192502. DOI:10.1063/1.3658900.

Keywords

FMR, electrostatic tuning, CVD, magnetoelectric interactions, ferrite-piezoelectric, applied electric field, ferroelectrics, nickel ferrite films, NiFe2O4, substrates

Subject Categories

Ferromagnetic resonance, Chemical vapor deposition, Heterostructures

Disciplines

Electromagnetics and photonics

Publisher

American Institute of Physics

Publication Date

11-7-2011

Rights Information

© 2011 American Institute of Physics

Rights Holder

American Institute of Physics

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sun fig1.zip (316 kB)
Figure 1

sun fig2.zip (400 kB)
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sun fig3.zip (236 kB)
Figure 3

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