Magnets are awesome. Electromagnets are even cooler. But what if you could make a semi-permanent switchable magnet that acts like an electromagnet, but doesn’t use any energy to hold metal? You’re ...

Capable of changing the direction of permanent magnet motors, a line of reversing polarity toggle switches can also control up/down, in/out, and rotate/counter-rotate motions when used with a relay.

Electric-field-induced toggle switching of nanoscale thin-film magnets signifies an important step towards energy-efficient magnetic data storage. Magnetic materials have found numerous applications ...