Giant ME effect in the ME composite and its applications in sensing and energy harvesting

In recent decades, the interest has increased in the use of magneto-electric (ME) composites for various applications in magnetic energy harvesting and magnetic field sensing. This dissertation investigates two approaches to achieve giant ME effect in piezoelectric based ME composites, and investigate its applications in (i) magnetic energy harvesting; (ii) weak magnetic field sensing and positioning. One general approach through the entire dissertation is to theoretically analyse the piezoelectric based ME composite system, optimization of the structure and to develop fabrication and measurement for the energy harvesting and sensing applications.