Powder diffraction
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Scientific interests in the group : structural and magnetic phase transitions.

(spectrometers 3T2, G41, G61)

 
#1606 - Màj : 31/08/2010
Faits marquants scientifiques
23 mai 2024
Influence of Dy3+ environment on magnetic anisotropy and magnetocaloric effect in Dy3⁢B2⁢C3⁢O12 (B=In, Sc, Te ; C=Ga, Al, Li) garnets F. Damay, S. Petit, D. Sheptyakov, C. V. Colin, E. Suard, S. Rols, J. Embs, U. Stuhr, D. Bounoua, O. Demortier, and C. Decorse, Phys. Rev. B 109 (2024) 014419   In the framework of the general phase diagram published recently for a pseudospin S = 1/2 on a hyperkagome network [Kibalin et al., Phys. Rev. Res.
23 septembre 2022
Wen-Gen Zheng, Victor Balédent, Claire V. Colin, Françoise Damay, Jean-Pascal Rueff, Anne Forget, Dorothée Colson and Pascale Foury-Leylekian It has been recently observed that a superconducting phase emerges under pressure in the Fe-based spin-ladders BaFe2X3 (X = S, Se). The low dimensionality of the Fe spin-ladders, which simplifies the elaboration of theoretical models, should help to understand the mechanism of superconductivity.
22 mars 2021
Laëtitia Mayen, Nicholai D. Jensen, Maximilien Desbord, Danielle Laurencin, Christel Gervais, Christian Bonhomme, Mark E. Smith, Florence Porcher, Erik Elkaim, Cédric Charvillat, Pierre Gras, Christian Rey, Jérémy Soulié and Christèle Combes, CrystEngComm, 22 (2020) 3130-3143. α-Canaphite (CaNa2P2O7·4H2O) is a layered calcium disodium pyrophosphate tetrahydrate phase of significant geological and potential biological interest.
25 janvier 2019
M. Deutsch, W. Peng, P. Foury-Leylekian, V. Balédent, S. Chattopadhyay, M. T. Fernandez-Diaz, T. C. Hansen, A. Forget, D. Colson, M. Greenblatt, M.-B. Lepetit, S. Petit, and I. Mirebeau The magnetic structure of TbMn2O5 and DyMn2O5 multiferroics has been studied by high-pressure neutron diffraction in a large pressure range up to 6.6 GPa.
17 novembre 2017
A. K. Nayak, V. Kumar, T. Ma, P. Werner, E. Pippel, R. Sahoo, F. Damay, U. K. Rößler, C. Felser and S. S. P. Parkin,  Nature 548, 561–566. Magnetic skyrmions are topologically stable, vortex-like objects surrounded by chiral boundaries that separate a region of reversed magnetization from the surrounding magnetized material.
Publications HAL
Thèses
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Stages

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Images
Spin ladder iron oxide : Sr3Fe2O5
Magnetic antiskyrmions above room temperature in tetragonal Heusler materials
Brevet : Procédé d\'isolation des bords d\'une cellule photovoltaïque à hétérojonction
Pressure-induced commensurate order in TbMn2O5 and DyMn2O5: Influence of rare-earth anisotropy and 3d-4 f exchange
Advances in the synthesis and structure of α-canaphite: a multitool and multiscale study
Universal stripe order as a precursor of the superconducting phase in pressurized BaFe2Se3 Spin Ladder
Influence of Dy3+ environment on magnetic anisotropy and magnetocaloric effect in Dy3B2C3⁢O12 (B=In,Sc,Te ; C=Ga,Al,Li) garnets

 

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