Efforts to maximise magnetoelectric output has concentrated on composite structures, coupling room temperature piezoelectric and magnetostrictive particulates or laminates through strain, to achieve a~10E3mV/cm.Oe. Recently, work by the authors using the ISIS, have shown that by mixing two ferroelectric crystallographic phases in a single compound, has resulted in an atomic scale composite that exhibits ME coupling using a similar strain mechanism, termed the piezomagnetoelectric effect. Modification of the previous BiFeO3-PbTiO3 system by doping with (K,Bi)TiO3 observes piezoelectric strains exceeding all previously recorded in the literature. This strain is thought to maximise the ME coefficient for commercial use.Aims-Apply E field to polycrystalline ceramic in-situ. -Map atomic strain and magnetisation as f(E).