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Article Dans Une Revue Physical Review Letters Année : 2011

Propagation of Spin Information at the Supramolecular Scale through Heteroaromatic Linkers

Résumé

We report an in-depth study on how spin information propagates at supramolecular scale through a family of heteroaromatic linkers. By density-functional theory calculations, we rationalize the behavior of a series of Cr(7)Ni dimers for which we are able to systematically change the aromatic linker thus tuning the strength of the magnetic interaction, as experimentally shown by low temperature micro-SQUID and specific heat measurements. We also predict a cos(2) dependence of the magnetic coupling on the twisting angle between the aromatic cycles in bicyclic linkers, a mechanism parallel to charge transport on similar systems

Dates et versions

hal-00976219 , version 1 (09-04-2014)

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V. Bellini, G. Lorusso, A. Candini, Wolfgang Wernsdorfer, Thomas B. Faust, et al.. Propagation of Spin Information at the Supramolecular Scale through Heteroaromatic Linkers. Physical Review Letters, 2011, 106 (22), pp.227205. ⟨10.1103/PhysRevLett.106.227205⟩. ⟨hal-00976219⟩

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