Structure and magnetism of disulfides of niobium and tantalum intercalated with iron and chromium


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J Am Chem Soc. 2022 May 18. doi: 10.1021/jacs.1c12975. Online ahead of print.


Transition metal dichalcogenides (TMDs) intercalated with spin-bearing transition metal centers are a diverse class of magnetic materials where spin density and order behavior can vary depending on the choice of host lattice, intercalating identity, the level of intercalation and the intercalating disorder. Each of these degrees of freedom alters the interplay between several key magnetic interactions to produce disparate collective electronic and magnetic phases. The range of magnetic and electronic behaviors characterized by these systems make them distinctive platforms for achieving tunable magnetism in solid-state materials and promising candidates for spin-based electronic devices. This perspective provides insight into the rich magnetism displayed by TMDs intercalated with transition metals when considering NbS intercalated with Fe and Cr2 and TaS2. These four examples of this large family of materials exhibit a wide range of magnetic properties, including sharp switching of magnetic states, current-driven magnetic switching, and chiral spin textures. An understanding of the fundamental origins of the resulting magnetic/electronic phases in these materials is discussed in the context of composition, bonding, electronic structure, and magnetic anisotropy in each case study.

PMID:35584537 | DOI: 10.1021/jacs.1c12975


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