In CaIrO3 the Fermi velocity remains nearly constant across carrier densities, confirming k-linear Dirac dispersion, while magnetoresistance field scaling shifts from linear to super-quadratic at low densities due to enhanced Coulomb interactions in the quantum limit.
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Carrier-density dependence of magnetotransport in correlated Dirac semimetal CaIrO$_3$
In CaIrO3 the Fermi velocity remains nearly constant across carrier densities, confirming k-linear Dirac dispersion, while magnetoresistance field scaling shifts from linear to super-quadratic at low densities due to enhanced Coulomb interactions in the quantum limit.