Axial Magnetoelectric Effect in Dirac Semimetals
Axial Magnetoelectric Effect in Dirac Semimetals
We propose a mechanism to generate a static magnetization via the ``axial magnetoelectric effect'' (AMEE). Magnetization $\mathbf{M}\ensuremath{\sim}{\mathbf{E}}_{5}(\ensuremath{\omega})\ifmmode\times\else\texttimes\fi{}{\mathbf{E}}_{5}^{*}(\ensuremath{\omega})$ appears as a result of the transfer of the angular momentum of the axial electric field ${\mathbf{E}}_{5}(t)$ into the magnetic moment in Dirac and Weyl semimetals. We point out similarities and differences between …