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Article Dans Une Revue Nature Communications Année : 2020

Vibron-assisted spin excitation in a magnetically anisotropic nickelocene complex

Résumé

The ability to electrically-drive spin excitations in molecules with magnetic anisotropy is key for high-density storage and quantum-information technology. Electrons, however, also tunnel via the vibrational excitations unique to a molecule. The interplay of spin and vibrational excitations offers novel routes to study and, ultimately, electrically manipulate molecular magnetism. Here we use a scanning tunneling microscope to electrically induce spin and vibrational excitations in a single molecule consisting of a nickelocene magnetically coupled to a Ni atom. We evidence a vibron-assisted spin excitation at an energy one order of magnitude higher compared to the usual spin excitations of nickelocene and explain it using first-principles calculations that include electron correlations. Furthermore, we observe that spin excitations can be quenched by modifying the Ni-nickelocene coupling. Our study suggests that nickelocene-based complexes constitute a model playground for exploring the interaction of spin and vibrations in the electron transport through single magnetic molecules.
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hal-02348271 , version 1 (05-11-2019)
hal-02348271 , version 2 (25-06-2024)

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N Bachellier, B Verlhac, L. Garnier, J. Zaldívar, C Rubio-Verdú, et al.. Vibron-assisted spin excitation in a magnetically anisotropic nickelocene complex. Nature Communications, 2020, ⟨10.1038/s41467-020-15266-0⟩. ⟨hal-02348271v2⟩
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