Electrostatic tuning of ferromagnetic resonance and magnetoelectric interactions in ferrite-piezoelectric heterostructures grown by chemical vapor deposition

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.

Status and Perspectives of Multiferroic Magnetoelectric Composite Materials and Applications

“…The converse ME coupling constant A = ∆f/E « 4 MHz cm/kV, and the voltage tuning for E =˘10 kV/cm was only about 2% of the central frequency. Li et al [127] reported X-band resonator studies using epitaxial nickel ferrite (NiFe 2 O 4 ) films (thickness of about 2.0 µm) deposited on PZN-PT or PMN-PT substrates using direct liquid injection chemical vapor deposition. A strong ME coupling resulting in large shifts in the FMR profile was observed, and were due to electrostatic field-induced anisotropic magnetic field changes.…”

Magnetoelectric coupling in a ferroelectric/ferromagnetic chain revealed by ferromagnetic resonance

“…In fact, FMR has been experimentally shown [15,16] to be sensitive to acoustic waves in ferromagnetic-ferroelectric structure. To our knowledge, multiferroic FMR, as suggested below has not yet been realized experimentally for the chosen interface, though several studies are known for multiferroic interfaces with other types of ME-coupling [17,18]. To be specific, we focus on a special class of ME coupled materials, so-called composite MFs [6,19], that may be synthesized from a wide range of materials that, when composed together yield a strong ME coupling and stable ferroelectric (FE) and ferromagnetic (FM) orders at room temperatures.…”

Microwave and millimeter-wave multiferroic devices

“…Thus, the E-tuning of the resonator could be linear or nonlinear, depending on the strength of E (Fetisov & Srinivasan, 2008). Similar X-band resonator studies were reported for 1.5e2.0-mm-thick nickel ferrite (NiFe 2 O 4 ) films grown heteroepitaxially on PZN-PT or PMN-PT substrates using direct liquid injection chemical vapor deposition (Li et al, 2011). A strong magnetoelectric coupling resulting in large shifts in the FMR profile was observed and is due to electrostatic field induced magnetic anisotropic field changes in these heterostructures.…”

“…Ferrite-ferroelectric resonators, filters, phase shifters, and attenuators that employ voltage tuning of FMR are considered (Fetisov & Srinivasan, 2006Li et al, 2011; Shastry, Srinivasan, Bichurin, Petrov, & Tatarenko, 2004;Tatarenko & Srinivasan, 2011;Tatarenko, Gheevarughese, & Srinivasan, 2006;Tatarenko, Murthy, & Srinivasan, 2012;Tatarenko, Srinivasan, & Bichurin, 2006;Tatarenko, Srinivasan, & Filippov, 2007;Tatarenko, Ustinov, Srinivasan, Petrov, & Bichurin, 2010;Yang et al, 2013;Yang, Obi, & Sun, 2012).…”