Composite multiferroics as magnetic field detectors: how to optimise magneto-electric coupling (original) (raw)

Advances in Applied Ceramics, 2010

Abstract

Abstract We present a computer simulation and theoretical study of composite multiferroics acting as magnetic field detectors. Our set? up consists of a layer of piezoelectric sandwiched between two magnetostrictive layers. When magnetic field is applied the magnetostrictive strains and this is passed onto the piezoelectric producing a detectable voltage. We model the device using our own finite element code and calculate open circuit voltage and input impedance. Good agreement is shown with analytical formulas. We then ...

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