  Due to the large anomalous Hall effect, magnetic Weyl semimetals can support
nonreciprocal surface plasmon polariton modes in the absence of an external
magnetic field. This implies that magnetic Weyl semimetals can find novel
application in (thermal) photonics. In this work, we consider the near-field
radiative heat transfer between two magnetic Weyl semimetal slabs and show that
the heat transfer can be controlled with a relative rotation of the parallel
slabs. Thanks to the intrinsic nonreciprocity of the surface modes, this
so-called twisting method does not require surface structuring like periodic
gratings. The twist-induced control of heat transfer is due to the mismatch of
the surface modes from the two slabs with a relative rotation.
