Study reveals magnetic process that can lead to more energy-efficient memory in computers

Science Daily  June 30, 2020 Magnetic memory and logic devices that use skyrmions rely on current-controlled motion of skyrmions. A team of researchers in the US (Virginia Commonwealth University, UCLA) has shown that using skyrmions that are fixed in space could lead to more compact and energy-efficient devices. They manipulated fixed magnetic skyrmions using voltage-controlled magnetic anisotropy to show that skyrmions can be stabilized in antiferromagnet/ferromagnet/oxide heterostructure films without any external magnetic field due to an exchange bias field. The isolated skyrmions are annihilated or formed by applying voltage pulses and skyrmions can be created from chiral domains by increasing […]