Intercalated Transition Metal Dichalcogenides

About

TMDs are quasi-two-dimensional systems characterized by strong in-plane bonding and weak inter-layer coupling. Their reduced dimensionality makes them susceptible to collective electronic instabilities such as superconductivity and charge density waves (CDW). Weak van der Waals interlayer coupling enables intercalation of TMD’s by various atoms and molecules.

Especially interesting is intercalation with magnetic atoms because it connects TMD’s to the wider field of research on the interplay between conducting electrons and magnetic lattice degrees of freedom. Magnetically intercalated TMDs are known to develop various magnetic phases. Recently theoretically proposed topological effects in electronic band structure of parent and intercalated systems makes investigation of those materials even more interesting in the light of possible applications. All those properties interpolate them between heavy fermion compounds, high-temperature superconductors and topological materials.

Here we aim to fine tune disorder created by intercalated ions through degree of intercalation in order understand what is the impact of this disorder on metallic conduction in host layers as well as on the possible formation of magnetic ordering in the case of antiferromagnetic and ferromagnetic couplings.

HRZZ IP-2020-02-9666