Xinran Wang

A microscopic image of tissue is like a city map: streets, houses, parks. An experienced eye can tell a lot about a neighborhood from such a map. But what if you could predict from the map which houses are noisy today and which are quiet?

Two sheets of graphene — the thinnest layers of carbon, just one atom thick — are stacked like bread in a sandwich. Between them lies a magnetized layer of CrSBr. When current flows through this sandwich, the resistance depends on which way the magnetic moments in the middle layer point.