Interfacial magnetic anisotropy in van der Waals Heterostructure probed by Tunneling Magnetoresistance

In few-layer van der Waals magnets, exotic magnetic states which are absent in the original bulk crystals can appear, offering promising platforms for exploring novel magnetic properties and new functionalities. When we make van der Waals heterostructures of few layer magnets, they can be further controlled due to the interfacial magnetic interaction and frustration, leading to unique magnetic orders that are not present even in the pristine few layer crystals.

In this research, we focused on a heterostructure composed of chromium trihalides. According to the previous work of magneto-optical Kerr effect, it is clarified that magnetic anisotropy in the interface layer is modulated. In this presentation, we study the tunneling magneto resistance in this heterostructure and report the influence of the characteristic interfacial spin configuration on the transport properties. We discuss the potential characteristic spin states and anisotropy realized in this system.