Strain flips Hall signal in altermagnetic manganese telluride, suggesting a path to practical spintronics
Time-reversal symmetry is an exotic behavior found in systems whose internal physics looks different when running forward versus backward in time.
Time-reversal symmetry is an exotic behavior found in systems whose internal physics looks different when running forward versus backward in time.
The short version
- For some time, physicists have searched for this behavior in systems with almost no overall magnetization.
- Such phases are highly prized for spintronics, where information is carried using the quantum spins of electrons.
- This article has been reviewed according to Science X's editorial process and policies .
What happened
Editors have highlighted the following attributes while ensuring the content's credibility: Time-reversal symmetry is an exotic behavior found in systems whose internal physics looks different when running forward versus backward in time. Through new research published in Physical Review X , a team led by Pengcheng Dai at Rice University observed a strain-sensitive quantum effect in one such material that could bring practical spintronic devices a step closer.
Why it matters
In most familiar magnets, time-reversal symmetry is broken by aligning large numbers of electron spins in the same direction, producing a strong overall magnetic field.
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