Figure 5: Experimental concept.

In the semi-classical approach the adsorption induces transfer of electrons with a specific spin from the FM layer to the SAM (denoted by the green arrow). Owing to the SAM dipoles, the LUMO is partially below the Fermi level (dashed line). Electrons are transferred to the SAM to fill the now empty states below the Fermi energy. The transferred electrons have a specific spin because of the chirality of the AHPA-D (a) or AHPA-L (b) molecules. Consequently, splitting in the spin states’ density in the FM is created, hence directional magnetization. (c) In the suggested quantum mechanical approach the electronic wave function (green) delocalization induces imbalances in spin-up (blue) and spin-down (red) populations, indicated as anisotropic magnetization H pointing upwards or downwards, respectively.