Journal
APPLIED PHYSICS LETTERS
Volume 88, Issue 18, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.2198111
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An electric field tunable yttrium iron garnet (YIG)-lead zirconate titanate (PZT) phase shifter based on ferromagnetic resonance (FMR) is designed and characterized. The electric field control of the phase shift delta phi arises through magnetoelectric interactions. The piezoelectric deformation in PZT in an electric field E leads to a shift in the FMR frequency in YIG and a phase shift. For E=5-8 kV/cm applied across PZT, delta phi=90 degrees-180 degrees and an insertion loss of 1.5-4 dB are obtained. Theoretical estimates of delta phi are in excellent agreement with the data.
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