  Chiral materials, similarly to human hands, have distinguishable right-handed
and left-handed enantiomers which may behave differently in response to
external stimuli. Here, we use for the first time an approach based on the
density functional theory (DFT)+PAOFLOW calculations to quantitatively estimate
the so-called collinear Rashba-Edelstein effect (REE) that generates spin
accumulation parallel to charge current and can manifest as chirality-dependent
charge-to-spin conversion in chiral crystals. Importantly, we reveal that the
spin accumulation induced in the bulk by an electric current is intrinsically
protected by the quasi-persistent spin helix arising from the crystal
symmetries present in chiral systems with the Weyl spin-orbit coupling. In
contrast to conventional REE, spin transport can be preserved over large
distances, in agreement with the recent observations for some chiral materials.
This allows, for example, the generation of spin currents from spin
accumulation, opening novel routes for the design of solid-state spintronics
devices.
