Floquet driving in d_xy altermagnets yields Chern phases with |C|=2 for |β|>1 via high-symmetry Dirac points and up to |C|=4 for |β|<1 via off-symmetry G points, with anomalous Hall conductivity as signature.
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Floquet Topological Phases and Anomalous Hall Signatures in Irradiated Two-dimensional $d_{xy}$-Wave Altermagnets
Floquet driving in d_xy altermagnets yields Chern phases with |C|=2 for |β|>1 via high-symmetry Dirac points and up to |C|=4 for |β|<1 via off-symmetry G points, with anomalous Hall conductivity as signature.