Our collaborative work with Drs. Bing Lv, Jia-An Yan, Paul M. Shand, Andrew Stollenwerk, and Rui He, titled "Tuning the Magnetic Properties of CrI3 Using Ni Thin Film Deposition for Applications in Spintronic Devices" is published in ACS Applied Nano Materials.
In this work, we demonstrate that the magnetic state of CrI₃ can be tuned by depositing a thin metal layer, offering a new strategy for controlling spin degrees of freedom in van der Waals magnets. Using electron-beam evaporation, we deposited a 4 nm Ni layer on bulk CrI₃, forming a Ni/CrI₃ heterostructure. Ultralow-frequency magneto-Raman spectroscopy revealed a transition from antiferromagnetic (AFM) surface layers in pristine CrI₃ to a fully ferromagnetic (FM) state after Ni deposition. This approach not only enables magnetic phase tuning but also protects CrI₃ from rapid air degradation—both crucial for its potential applications in spintronic devices and magnetic sensors.

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