Stacking altermagnetic layers in an SSH chain leaves a compensated antiferromagnet in bulk and spin-split topologically protected states at the surface.
Momentum- dependent spin splitting by collinear antiferromagnetic ordering
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Topological surface altermagnets in SSH-stacked magnetic layers
Stacking altermagnetic layers in an SSH chain leaves a compensated antiferromagnet in bulk and spin-split topologically protected states at the surface.