Electrons slow to a crawl in a strange new quantum state

Scientists at the University of Chicago have uncovered a surprising quantum state in the layered magnetic material Fe5GeTe2, where huge numbers of electrons move together unusually slowly while remaining quantum coherent. The behavior contradicts existing theoretical predictions about how the material’s magnetism should work and suggests scientists may need to rethink its underlying physics.

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Electrons slow to a crawl in a strange new quantum state