Image (IMAGE) Science China Press Caption (a) A geometry of NiFe-BWO magnetoelectric thin film device with four planar electrodes. (b) The deterministically reversible reversal of single magnetic vortex circulation by bi-axial pulsed electric field. (c) The space-varying strain evolves as a function of pulsed electric field numbers. (d) Dynamic mechanism of magnetic vortex reversal. (e) Electric-field-controlled magnetic vortex based data-storage devices. Credit ©Science China Press Usage Restrictions Use with credit. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.