Transition metal compounds that exhibit quantum magnetic states or whose dielectric properties are coupled to magnetic properties (magnetoelectric or type II multiferroic materials) are studied. Their crystal structures are analogous to those of minerals: wolframite for Mn(W,Mo)O4, karpenkoite for the pyrovanadate Co3V2O7(OH)2.2H2O, vesignieite for the orthovanadate BaCo3(VO4)2(OH)2, perovskite for the compounds (Ba,Sr)(Co,Ni)Sb2O9. In these materials, the metals carrying magnetic moments form lattices of particular geometries (chain, kagome, triangular, honeycomb, face-centered cubic) that give unusual magnetic properties. Our experimental approach consists in preparing materials by various methods, characterizing them, understanding the properties (magnetic, in particular) and the relationships between these properties, the composition, the crystalline structure and the microstructure or morphology of the material.
Expertise: crystal structure-microstructure-magnetic properties, magnetochemistry
Keywords: Magnetic oxides, magnetic frustration, magnetoelectric coupling, multiferroics
Applications: Quantum technologies, magnetoelectric devices
Collaborations : Laboratoire de Physique des Solides d’Orsay, Institut de Chimie de la Matière Condensée de Bordeaux, Institut Louis Néel, Laboratoire de Cristallographie et Sciences des Matériaux
IMN staff involved: Christophe Payen, Rémi Dessapt, Phillipe Deniard, Maria Teresa Caldes, Houria Kabbour.
Research projects: Nantes University doctoral contract (Bachchar Hadrane’s thesis), ANR LINK
Major publications:
Wolframite-type MnMoO4: Magnetization, sintering by Cool-SPS, and magnetodielectric effect.
Christophe Payen, Thomas Hérisson de Beauvoir, Philippe Deniard, Stephane Jobic, U-Chan Chung, Dominique Michau and Michael Josse.
Ceram. Int. 2024, 50, 8718-8724
Micro- and nanostructured layered-kagome zinc orthovanadate BaZn3(VO4)2(OH)2.
Bachchar Hadrane, Philippe Deniard, Nicolas Gautier, Michael Paris, Christophe Payen and Remi Dessapt.
Dalton Trans. 2023, 52, 16927-16934
Microstructured layered-kagome BaCo3(VO4)(2)(OH)(2) with variable crystallite size: alternative synthetic route and comparison with nanostructured samples.
Bachchar Hadrane, Philippe Deniard, Cassandre Jeannot, Isabelle Trenque, Remi Dessapt and Christophe Payen.
Dalton Trans. 2023, 52, 3501-3507
Two new cubic perovskite oxides Ba3CoSb2O9 and Ba2SrCoSb2O9: Syntheses, crystal structures and magnetic properties.
Celine Darie, Pierre Bordet, Melanie Viaud, Catherine Guillot-Deudon, Philippe Deniard, Eric Gautron, Claire Colin, Florence Porcher, Guido Berlanda, Fabrice Bert, Philippe Mendels and Christophe Payen.
J. Solid State Chem. 2023, 317, 123701
Crystal structures, frustrated magnetism, and chemical pressure in Sr-doped Ba3NiSb2O9 perovskites.
Melanie Viaud, Catherine Guillot-Deudon, Eric Gautron, Maria Teresa Caldes, Guido Berlanda, Philippe Deniard, Philippe Boullay, Florence Porcher, Carole La, Celine Darie, A. Zorko, A. Ozarowski, Fabrice Bert, Philippe Mendels and Christophe Payen.
Physical Review Materials 2022, 6
Nanocrystalline BaCo3(VO4)2(OH)2 with a kagome lattice of Co(II) ions: synthesis, crystal structure and magnetic properties.
R. Dessapt, L. Lajaunie, J J. Calvino, P. Deniard, I. Trenque and C. Payen.
J. Mater. Chem. C 2022, 10, 3287-3291
Evidence of Wolframite-Type Structure in Ultrasmall Nanocrystals with a Targeted Composition MnWO4.
Pascaline Patureau, Remi Dessapt, Pierre-Emmanuel Petit, Gautier Landrot, Christophe Payen and Philippe Deniard.
Inorg. Chem. 2019, 58, 7822-7827
Persistent Type-II Multiferroicity in Nanostructured MnWO4 Ceramics.
Pascaline Patureau, Remi Dessapt, Philippe Deniard, -Chan U. Chung, Dominique Michau, Michael Josse, Christophe Payen and Mario Maglione.
Chem. Mater. 2016, 28, 7582-7585
Phase transitions and magnetic structures in MnW1-xMoxO4 compounds (x <= 0.2).
Vincent Hardy, Christophe Payen, Francoise Damay, Lynda Meddar, Michael Josse and Gilles Andre.
J. Phys.-Condes. Matter 2016, 28, 336003
Gapless quantum spin liquid ground state in the spin-1 antiferromagnet 6HB-Ba3NiSb2O9.
J A. Quilliam, F. Bert, A. Manseau, C. Darie, C. Guillot-Deudon, C. Payen, C. Baines, A. Amato and P. Mendels.
Phys. Rev. B 2016, 93, 214432
A new high pressure form of Ba3NiSb2O9.
Celine Darie, Christophe Lepoittevin, Holger Klein, Stephanie Kodjikian, Pierre Bordet, Claire V. Colin, Oleg I. Lebedev, Catherine Deudon and Christophe Payen.
J. Solid State Chem. 2016, 237, 166-173
