Coil-less fluxgate effect in CoNiFe/Cu wire electrodeposited under torsion

► Co19Ni49.6Fe31.4/Cu composite wire with helical anisotropy was produced by applying torsion to Cu wire during the electrodeposition process. ► Sensitivity of coil-less fluxgate sensor increases with increasing torsion. ► The slope of the coil-less fluxgate curve depends on the direction of induced anisotropy.