  We demonstrate the possibility of a coupling between the magnetization
direction of a ferromagnet and the tilting angle of adsorbed achiral molecules.
To illustrate the mechanism of the coupling, we analyze a minimal Stoner model
that includes Rashba spin-orbit coupling due to the electric field on the
surface of the ferromagnet. The proposed mechanism allows us to study magnetic
anisotropy of the system with an extended Stoner-Wohlfarth model, and argue
that adsorbed achiral molecules can change magnetocrystalline anisotropy of the
substrate. Our research's aim is to motivate further experimental studies of
the current-free chirality induced spin selectivity effect involving both
enantiomers.
