Publications Highlight in Nature with MAINZ PhD Student Andrew Ross

Conventional devices using current CMOS based technologies have the unwelcome side effects of getting too hot and being limited in their speed, operating at GHz frequencies. Eventually, this is slowing down the progress of information technology. In the last years, the emerging field of “magnon spintronics” aimed at using insulating magnets capable of carrying magnetic waves, known as magnons, to solve these problems. Magnons are able to carry information at increased speeds without the production of excess heat. However, experimental observations had so far been limited to ferromagnetic materials. In collaboration with the Quantum Spintronics at NTNU and Utrecht University, our group has demonstrated that magnons can also efficiently carry spin information in antiferromagnets, the largest group of magnetic materials. This class of material has several crucial advantages over ferromagnetic components as they are stable and unaffected by external magnetic fields, a key requirement for future data storage. Additionally, antiferromagnet based devices can be potentially operated thousands of times faster than current technologies, as their intrinsic dynamics are in the THz range. As a result, antiferromagnetic magnons could thus be used in future ultra-fast and low power technological devices.
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