Eurekalert March 3, 2020 Researchers in Germany discovered that skyrmions and antiskyrmions are stabilized in different materials by a magnetic interaction that is directly tied to the structure of the host material. However, what was previously overlooked is that the magnetic dipoles also significantly interact with each other via their dipole-dipole interaction. This interaction always prefers skyrmions. For this reason, even “antiskyrmion materials” can exhibit skyrmions (but not vice versa). This happens preferably as the temperature is lowered. At a critical transition temperature, the two distinct objects coexist. The finding allows for an advanced version of the racetrack memory data […]
Tag Archives: Antiskyrmions
Magnetic antiparticles offer new horizons for information technologies
Eurekalert August 15, 2018 An international team of researchers (Germany, Sweden, France, Czech Republic) theoretically explored the dynamics of skyrmions and antiskyrmions in ultrathin ferromagnetic films and showed that current-induced spin–orbit torques can lead to trochoidal motion and skyrmion–antiskyrmion pair generation, which occurs only for either the skyrmion or antiskyrmion, depending on the symmetry of the underlying Dzyaloshinskii–Moriya interaction. They developed algorithms which predict how spin–orbit torques can control the type of motion and the possibility to generate skyrmion lattices by antiskyrmion seeding. By increasing the amount of energy transferred to the system from the applied currents, they found that […]