Fig. 2.

Rashba-Edelstein effect in CuMnAs with magnetic moments along the a-axis. a Sketch of the tetragonal unit cell of CuMnAs. The red arrows on the Mn atoms represent the initial magnetic moments. Applying an electric field $\mathbf{E}$ along the (100) direction (gray arrow) induces a nonequilibrium magnetization mainly along the (010) direction (green arrows). b In-plane symmetry of the induced spin magnetization as a function of the static electric-field direction for Mn${}_1$. c In-plane symmetry of the induced orbital magnetization as a function of the static electric-field direction for Mn${}_1$. d Real parts of the nonzero components $ij$ ($i,j=$ x, y, or z) of the spin and orbital Rashba-Edelstein susceptibility tensors, $\mathrm{Re}\left[2{\chi }^S\right]$ and $\mathrm{Re}\left[{\chi }^L\right]$, as function of the driving electric-field frequency, $\hslash \omega$.