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Magnetism and spin

Magnetism and spin

Applied magnetic field flips a material’s thermal expansion

28 Jun 2023 Isabelle Dumé
Conceptual image showing blue magnetic field lines leaving both ends of a dipole and connecting in the middle
(Courtesy: iStock/enot-poloskun)
Most materials expand when heated. A few, such as water just above freezing, contract. Now, for the

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Isabelle Dumé is a contributing editor to Physics World
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