Rutile CoF2 is predicted to host spin-split flat valence bands that act as spin-resolved 2D hole gases and can show spin-dependent quantum Hall effect under an in-plane magnetic field.
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Spin-split flat bands at the band edge and two-dimensional hole gases towards quantum Hall effect in altermagnetic CoF$_2$
Rutile CoF2 is predicted to host spin-split flat valence bands that act as spin-resolved 2D hole gases and can show spin-dependent quantum Hall effect under an in-plane magnetic field.