Linear magnetochiral effect in Weyl semimetals

We suggest the possibility of a linear magnetochiral effect in time reversal breaking Weyl semimetals. The magnetochiral effect consists of the simultaneous linear dependence of the magnetotransport coefficients with a magnetic field and a momentum vector. This simultaneous dependence is allowed by the Onsager reciprocity relations, being the separation vector between the Weyl nodes that plays such a role. The presence of band-bending terms in the dispersion relation of generalized Weyl fermions is responsible for the magnetochiral effect. This linear magnetochiral effect constitutes a transport effect associated with the topological structures linked to time reversal breaking Weyl semimetals.