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Home > Research groups > Equipe de Recherche en Matériaux Moléculaires et Spectroscopies (ERMMES)


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Our actual activities aim both at synthesizing new molecular magnetic compounds and understanding their properties by developing spectroscopic methods.

One of the research themes of the group deals with information storage and processing by the synthesis of new single molecule/chain magnets and new hybrid materials obtained by molecule-nanoparticles interaction. Molecular compounds are bistable at low temperature foreshadowing applications as non-volatile memory devices. Single molecule/chain magnets have already been obtained in the lab. Nevertheless, one of our goals is to get new systems bearing reasonable critical temperatures (TB > 77K). Regarding hybrid materials, decorating nanoparticles would allow not only to process them but also to enhance and tune the properties of these nano-objects.

Another research axis aims at synthesizing multifunctional magnetic materials in which several properties (magnetic, electronic, optical, ferroelectric…) can exist or even interact with one-another. This axis takes part to the development of molecular or hybrid electronics. Beyond this goal, the ERMMES team develops magnetic systems for quantum computing (molecular qubits) and molecular spintronics.

In parallel, ERMMES develops research in X-ray absorption spectroscopies and paramagnetic NMR. Paramagnetic NMR, as a local probe, allows the characterization of interaction mechanisms in between magnetic centres. X-ray absorption spectroscopy (XAS), and more particularly when employed in magnetic circular dichroism in the X-ray domain (XMCD), uses synchrotron sources and provides information about the local chemical and electronic structures but also about the magnetic properties of materials that do not bear long-range order.

In addition, our team strengthens its expertise in magnetometry thanks to a common magnetic measurement department that we develop in cooperation with the Institute of Nanosciences of Paris (INSP).

In order to develop all these subjects, ERMMES synthesises multi-scale and genuine compounds (molecules, 1D, 2D and 3D materials, nanoparticles) by designing preparing and using mono- or polymetallic molecular bricks such as polycyanometallic complexes and oxamate- and oxalate-based complexes. Our approach is based on molecular programming, a strategy allowing the injection in a molecular precursor of chemical, structural and electronic information that is useful to build up architectures bearing the desired properties.

To contact us:
Pr. Rodrigue Lescouëzec

Université Pierre et Marie Curie Paris 6,
4 Place Jussieu, 75252 Paris cedex 5

Couloir 33-43 5ème étage

Tel:33(0)1 44 27 30 75