Atomic-column imaging uncovers hidden magnetic structures in antiferromagnets

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Antiferromagnetic materials, with antiparallel atomic spins and zero net magnetization, are fast and resistant to external magnetic interference, making them ideal for high-speed, high-density spintronic devices. However, their zero net magnetization makes conventional imaging difficult, as neutron- or synchrotron-based methods have limited resolution and cannot easily probe microscopic regions or interfaces.