Electric field tuning of domain magnetic resonances in yttrium iron garnet films

Zavislyak, I. V.; Popov, M. A.; Sreenivasulu, G.; Srinivasan, G.
June 2013
Applied Physics Letters;6/3/2013, Vol. 102 Issue 22, p222407
Academic Journal
The converse magnetoelectric effect is studied by voltage tuning of magnetic resonance in a bilayer of (111) yttrium iron garnet (YIG) film and polycrystalline lead zirconate titanate (PZT) when the YIG film is in a multi-domain state or under magnetic saturation. The application of a DC voltage across PZT manifests as a uniaxial anisotropy field in YIG and results in a shift in the resonance. In the multi-domain state, the voltage tuning of resonance is strong with a magneto-electric coefficient A = 12 MHz cm/kV. Under magnetic saturation, the voltage tuning is rather weak with A = 2 MHz cm/kV.


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