Hybrid
Magnetic Superconductors Formed by TaS<sub>2</sub> Layers and Spin
Crossover Complexes
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Abstract
The restacking of charged TaS<sub>2</sub> nanosheets with molecular counterparts has so far allowed
for the combination of superconductivity with a manifold of other
molecule-intrinsic properties. Yet, a hybrid compound that blends
superconductivity with spin crossover switching has still not been
reported. Here we continue to exploit the solid-state/molecule-based
hybrid approach for the synthesis of a layered TaS<sub>2</sub>-based
material that hosts Fe<sup>2+</sup> complexes with a spin switching
behavior. The chemical design and synthetic aspects of the exfoliation/restacking
approach are discussed, highlighting how the material can be conveniently
obtained in the form of highly oriented easy-to-handle flakes. Finally,
proof of the presence of both phenomena is provided by the use of
a variety of physical characterization techniques. The likely sensitivity
of the intercalated Fe<sup>2+</sup> complexes to external stimuli
such as light opens the door for the study of synergistic effects
between the superconductivity and the spin crossover switching at
low temperatures