Like light waves, magnetic waves move through materials at a fixed maximum velocity. However, at the smallest possible length scale (nanometres) and the shortest possible time scale (femtoseconds), magnetism behaves differently. Physicists at Radboud University have discovered that magnetic waves with very short wavelengths can propagate up to 40% faster than previously thought. This supermagnonic propagation offers opportunities for even faster, smaller and more energy-efficient ways of data processing in future computers
Por: Phys.org. Acesse aqui a matéria original.
(...) "The concept is comparable to supersonic aircrafts, which move faster than the maximum speed of sound waves. We therefore call these fastest magnetic waves supermagnonic," explains physicist Johan Mentink. Thanks to a new theoretical methodology inspired by machine learning, the researchers managed to perform calculations on two-dimensional magnets. These calculations revealed that the smallest magnetic waves can travel up to 40% faster than the maximum propagation speed. "Thanks to the machine learning simulations by colleague Giammarco Fabiani and the analytical calculations by Master's student Martijn Bouman, we now understand why these supermagnonic magnetic waves can exist." Saiba mais...
Imagem: Radboud University
