For the first time, scientists have imaged an entirely new form of magnetism called altermagnetism. The researchers used cutting-edge x-ray techniques to visualize and fine-tune this novel magnetic ...

Collinear ordered magnetic materials have conventionally been put into two classes: ferromagnets, in which magnetic moments of neighbouring atoms point in the same direction; and antiferromagnets, in ...

Artificial intelligence is colliding with a hard physical limit: the energy and heat of today’s silicon-based chips. As models grow from billions to trillions of parameters, the bottleneck is no ...