Nonlinear electric field tuning characteristics of yttrium iron garnet–lead zirconate titanate microwave resonators
Authors:
- 21 July 2008
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 93 (3) , 033508
Abstract
This report is on hysteresis and switching associated with electric field (E) tuning of ferromagnetic resonance in a bilayer of yttrium iron garnet (YIG)-lead zirconate titanate (PZT). The tuning is facilitated by piezoelectricity of PZT and mechanical bonding with YIG. For E<2kV∕cm, the frequency shift δf is linear with E. For E10kV∕cm, a butterflylike dependence of δf with an abrupt switch in the sign and magnitude of δf are measured. The observations are attributed to nonlinearities of the piezoelectric deformation.Keywords
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