The success story of information processing by way of moving electrons is slowly coming to an cessation. The trend towards increasingly compact chips constitutes a major challenge for manufacturers,since the increasing miniaturization creates partly unsolvable physical problems. This is why magnetic spin waves could be the future: they are faster than electronic charge carriers and utilize less power. Researchers at the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) and TU Dresden have developed a method for controlling the propagation of these information carriers at the nanolevel in a targeted and simple way; so far, this required a lot of power. They have thus created a basis for nanocircuits that utilize spin waves.
Source: phys.org