“EPR under the strong magnetic field gradient of a ferromagnetic nanostripes array: from nanosciences to structural biology". J. Tribollet, B. Vileno, P. Turek. Invited Talk at IXth Conference of European Federation of EPR Societies, Marseille (France), 7-11 sept. 2014 - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2014

“EPR under the strong magnetic field gradient of a ferromagnetic nanostripes array: from nanosciences to structural biology". J. Tribollet, B. Vileno, P. Turek. Invited Talk at IXth Conference of European Federation of EPR Societies, Marseille (France), 7-11 sept. 2014

Résumé

In this talk, I will present recent experimental and theoretical results aiming at developing a new EPR tool and the associated new EPR spectroscopic methods, which should allow the future investigation of the magnetic and structural properties of paramagnetic nano-objects with nanoscale resolution. This new EPR tool combines standard continuous wave or pulse EPR spectroscopic tools, with the strong magnetic field gradient produced by an array of ferromagnetic nanostripes, placed in the immediate environment of the paramagnetic nanoobjects under study. Those paramagnetic nano-objects could be for example, paramagnetic defects in thin solid films or spin labeled proteins in biological matter. In the first part of this talk I will present the experimental study of arrays of permalloy ferromagnetic nanostripes by spin wave resonance spectroscopy. Then, I will show theoretically, how to interpret those complex spin wave resonance spectrum observed in those ferromagnetic nanostructures, and how to use it to indirectly probe the strong magnetic field gradient produced by those ferromagnetic nanostripes arrays in their immediate environment. In the second part of this talk, I will present the first experimental results towards the direct EPR measurement of the dipolar magnetic field produced by those ferromagnetic nanostripes arrays on nearby paramagnetic probes. Finally, I will conclude this talk by giving some possible examples of future applications of EPR under a strong magnetic field gradient. This will include applications in the field of structural biology and in the field of nanosciences.
Fichier non déposé

Dates et versions

hal-02987539 , version 1 (03-11-2020)

Identifiants

  • HAL Id : hal-02987539 , version 1

Citer

Jérôme Tribollet, Bertrand Vileno, Philippe Turek. “EPR under the strong magnetic field gradient of a ferromagnetic nanostripes array: from nanosciences to structural biology". J. Tribollet, B. Vileno, P. Turek. Invited Talk at IXth Conference of European Federation of EPR Societies, Marseille (France), 7-11 sept. 2014. IXth Conference of European Federation of EPR Societies, Sep 2014, Marseille, France. ⟨hal-02987539⟩
16 Consultations
0 Téléchargements

Partager

Gmail Facebook X LinkedIn More