Helicon modes in multi-Weyl semimetals keep the linear-plus-quadratic wavevector dispersion of single Weyl semimetals, with the frequency scale set by charge-dependent plasma frequencies.
Kerr effects in tilted multi-Weyl semimetals
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abstract
We calculate the optical conductivity of type-I and type-II multi-Weyl semimetals(m-WSMs) in time-reversal(TR) broken case at finite doping. It is found that both longitudinal and Hall conductivities are renormalized by J(monopole charge) perpendicular to Weyl nodes separation and longitudal conductivity along nodes has non-trivial dependence on J. The Kerr rotations in thin films and bulk have different dependence on system parameters. The Kerr rotation in ultra-thin films is independent of monopole charge J and depends only on Fermi velocity v F while in bulk it dependent on monopole charge J, Fermi velocity and material parameters.
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Helicons in multi-Weyl semimetals
Helicon modes in multi-Weyl semimetals keep the linear-plus-quadratic wavevector dispersion of single Weyl semimetals, with the frequency scale set by charge-dependent plasma frequencies.