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.
@article{arxiv.2306.17592,
title = {Achiral dipoles on a ferromagnet can affect its magnetization direction},
author = {Ragheed Alhyder and Alberto Cappellaro and Mikhail Lemeshko and Artem G. Volosniev},
journal= {arXiv preprint arXiv:2306.17592},
year = {2023}
}