Geomagnetic field tuned frequency multiplication in Metglas/Pb(Zr, Ti)O3 heterostructure

We present a frequency multiplication in Metglas/Pb(Zr,Ti)O3 (PZT) magnetoelectric (ME) composites which can be tuned by geomagnetic field. Such effect was observed under small dc magnetic biases, and can be operated over a broad frequency range. Moreover, the geomagnetic field can serve as the “ON–OFF” switch for control of the frequency multiplication in ME composites. Thus, a guidance device could be developed to lock onto the direction with largest component of Earth’s field.

► We observed frequency multiplication effect in Metglas/Pb(Zr, Ti)O3 heterostructure.
► The frequency multiplication can be operated over a broad frequency range.
► Geomagnetic field can serve as “ON–OFF” switch for such multiplication effect.