Large Dzyaloshinskii-Moriya Interaction and Perpendicular Magnetic Anisotrophy Induced by Chemisorbed Species on Ferromagnets

Abstract

Embodiments may provide a realization of strong Dzyaloshinskii-Moriya interaction (DMI) and perpendicular magnetic anisotropy (PMA) induced by chemisorbed species on a ferromagnetic layer. For example, in an embodiment, an apparatus for generating DMI may comprise a ferromagnet comprising a single-layer or multi-layers of materials made of metal, oxide or other types of magnetic films, and a substance chemisorbed on a surface of the ferromagnet to induce the DMI or the PMA at the interface between the chemisorbed species and the ferromagnet. These induced effects may be used to maniupulate spin textures such as switching of domain wall chirality and writing/deleting of magnetic skyrmions, which are relevant for spintronics and magneto-ionics as well as for gas sensing.

Dependencies are inferred from the claim text.