Electric Field Tuning Ferromagnetic Resonance Frequency Shift in Oblique Sputtered Fe42Co46Hf12/PZN-PT Multiferroic Heterostructures

Strong inverse magnetoelectric (ME) coupling was observed in Fe
₄₂
Co
₄₆
Hf
₁₂
/Lead Zinc Niobate-Lead Titanate multiferroic heterostructure, which produced a large electric field (E-field) tunability on microwave magnetic properties. With the increase of the E-field from 0 to 8 kV/cm, the E-field-dependent Heff linearly increases from 175 to 411 Oe, equivalent to a large ME tunability of 29.5 Oe · cm/kV, which further leads to a significant enhancement of ferromagnetic resonance frequency from 4.13 to 6.28 GHz under zero bias magnetic field. These features demonstrate that this multiferroic composite is a promising candidate for fabricating E-field-tunable microwave components.