For years, manufacturers have offered computers with increasing amounts of memory packed into smaller devices. But semiconductor companies can’t reduce the size of memory components as quickly as they used to, and current designs are not energy-efficient. Conventional memory devices use transistors and rely on electric fields to store and read out information. An alternative approach being heavily investigated uses magnetic fields to store information. One promising version of magnetic device relies on the magnetoelectric effect which allows an electric field to switch the magnetic properties of the devices. Existing devices, however, tend to require large magnetic and electric fields that are difficult to produce and contain.