Jérôme Long (University of Montpellier, France) «Multifunctional molecule-based magnets: slow relaxation, luminescence and above room-temperature ferroelectricity»

Jérôme Long (University of Montpellier, France) «Multifunctional molecule-based magnets: slow relaxation, luminescence and above room-temperature ferroelectricity»

The event passed
4 Sep 2019
Location
Moscow, Ordzhonikidze st., 3, room 102, Faculty of science
Contact person
Knyazeva Elena
About the event

Coordination chemistry of lanthanide ions allows the tailored design of multifunctional ferroelectric molecule-based materials where the properties are gathered into a single molecular system. We investigate here, by using luminescent and magnetically anisotropic lanthanides ions assembled with an enantiopure antenna ligand, the synthesis of high temperature ferroelectric complexes having a high degree of functionality, combining Single-Molecule Magnet behavior, optical activity and lanthanide luminescence. Remarkably, these molecular systems behave as ferroelectrics up to a temperature above 180 K of the Curie temperature of BaTiO3, making it the highest temperature working molecular ferroelectric yet reported. Remarkably, investigation of the magnetoelectrical coupling at room temperature confirms their great potential as multiferroics.

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