  Recently, layered materials transition metal thiophosphate MPX3 (M =
transition metals, X = S or Se) have gained significant attention because of
their rich magnetic, optical, and electronic properties. Specifically, the
diverse magnetic structures and the robustness of magnetism in the
two-dimensional limit have made them prominent candidates to study
two-dimensional magnetism. Numerous efforts such as substitutions and
interlayer intercalations have been made to tune the properties of these
materials, which has greatly deepened the understanding of the underlying
mechanisms that govern the properties. In this work, we focus on modifying the
magnetism of Ising-type antiferromagnet FePS3 using electrochemical lithium
intercalation. Our work unveils the effectiveness of electrochemical
intercalation as a controllable tool to modulating magnetism, including tuning
magnetic ordering temperature and inducing low temperature spin-glass state,
offering an approach for implementing this material into applications.
