Chirality-induced spin selectivity (CISS) refers to multiple phenomena where handedness of a chiral chemical compound influences the spin of transmitted or emitted electrons.
[1] Experiments were able to demonstrate the effect in the form of polarization of electrons scattered from chiral molecules, spin-dependent transmission probabilities through layers of chiral molecules, spin-selectivity of electron-transport in a chiral medium and enantio-selectivity in chemical reactions induced by spin-polarized electrons.
[2] Theoretical models were able to qualitatively explain the effect using spin-orbit coupling (SOC).
But quantitatively the predicted effect was always orders of magnitude smaller than what was measured in experiments.
Whilst mechanism underlying CISS is not completely understood, a hybrid method comprising a film of pure gold with chiral molecules on it has produced results on par with the magnetic method.