Time-reversal symmetry is an exotic behavior found in systems whose internal physics looks different when running forward versus backward in time. For some time, physicists have searched for this behavior in systems with almost no overall magnetization. Such phases are highly prized for spintro...

Source: [Phys.org](https://phys.org/news/2026-08-strain-flips-hall-altermagnetic-manganese.html)

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