TOPEventsSeminarsDominique Luneau (University Claude Bernard Lyon1): Polarized neutron diffraction and magneto-structural relationships in molecular magnetic compounds
Seminars

Dominique Luneau (University Claude Bernard Lyon1): Polarized neutron diffraction and magneto-structural relationships in molecular magnetic compounds

2F Seminar Room, Science Knot Building and Zoom

Abstract

PND has proved to be particularly suitable for the study of magnetic molecular compounds and the determination of the spin density. This provides unique information on the paths of magnetic interactions and the nature of magnetic intra-or intermolecular coupling [1].  In this talk, we show on several examples how we can go beyond the spin density reconstruction and use the local susceptibility tensor approach [2] and study the magnetic anisotropy in molecular compounds (Figure 1) [3-7].

Figure 1. Schematic representation of mapping magnetic anisotropy from polarized neutron diffraction.

This makes PND an excellent tool to help in the design of molecular-based magnets and especially single-molecule magnets for which strong uniaxial magnetic anisotropy is required.

References

[1] C. Aronica, E. Jeanneau, H. El Moll, D. Luneau, B. Gillon, et al., Chem. Eur. J., 2007, 13, 3666-3674 (https://doi.org/10.1002/chem.200601253)

[2] A. Gukasov and P. J. Brown, J. Phys-Condens. Mat. 2002, 14, 8831-8839.( https://doi.org/10.1088/0953-8984/14/38/307)

[3] K. Ridier, B. Gillon, A. Gukasov, G. Chaboussant, A. Cousson, D. Luneau, A. Borta, J.-F. Jacquot, R. Checa, Y. Chiba, H. Sakiyama, M. Mikuriya Chem. Eur. J. 2016, 22, 724-735 (https://doi.org/10.1002/chem.201503400)

[4] O. Iasco, Y. Chumakov, F. Guegan, B. Gillon, M. Lenertz, A. Bataille, J. F. Jacquot, D. Luneau  Magnetochemistry 2017, 3 (https://doi.org/10.3390/magnetochemistry3030025)

[5] F. Guégan, J. Jung,  B. Le Guennic, F. Riobé, O. Maury, B. Gillon, J-F. Jacquot, Y. Guyot, C. Morell, D. Luneau Inorg. Chem. Front., 2019, 6, 3152–315 (https://doi.org/10.1039/c9qi00726a)

[6] D. Luneau, B. Gillon  Magnetochemistry 2021, 7  (http://dx.doi.org/10.3390/magnetochemistry7120158)

[7] S. Grenda, H. Yairi, T.Fujimoto, O. Fabelo, I. Kibalin, N. Claiser, R. Maurice, A. Gukasov, L. Canadillas-Delgado J. A. Rodriguez Velamazan,  J-F. Jacquot, R. Mitsuhashi, M. Mikuriya, M. Handa, and D. Luneau Dalton Trans. (Accepted)

Zoom information

https://us02web.zoom.us/j/2022111100

(Meeting code: 2022111100 Password: skcm2)

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