Space Group Symmetry of BaFe$_2$Se$_3$: ab initio-Experiment Phonon Study

Autor: Weseloh, M. J., Balédent, V., Zheng, W., Verseils, M., Roy, P., Brubach, J. B., Colson, D., Forget, A., Foury-Leylekian, P., Lepetit, M. -B.

This paper presents a study of the structure dynamics in BaFe$_2$Se$_3$. We combined first-principle calculations, infrared measurements and a thorough symmetry analysis. Our study confirms that $Pnma$ cannot be the space group of BaFe$_2$Se$_3$, eve

Externí odkaz: http://arxiv.org/abs/2202.10039

Ferroelectricity in the 1 $\mu$C cm$^{-2}$ range induced by canted antiferromagnetism in (LaMn$_{3}$)Mn$_{4}$O$_{12}$

Autor: Gauzzi, A., Milton, F., Gastaldo, V. Pascotto, Verseils, M., Gualdi, A., Dreifus, D., Klein, Y., Garcia, D., de Oliveira, A. J. A, Bordet, P., Gilioli, E.

Publikováno v: Appl. Phys. Lett. 115, 152902 (2019)

Pyroelectric current and magnetoelectric coupling measurements on polycrystalline samples of the quadruple perovskite (LaMn$_{3}$)Mn$_{4}$O$_{12}$ give evidence of ferroelectricity driven by the antiferromagnetic ordering of the $B$-site Mn$^{3+}$ io

Externí odkaz: http://arxiv.org/abs/1811.07182

Quantification of Crystalline Phases in Hf 0.5 Zr 0.5 O 2 Thin Films through Complementary Infrared Spectroscopy and Ab Initio Supercell Simulations.

Autor: Cervasio R; L'Orme des Merisiers, Synchrotron SOLEIL, Saint-Aubin BP 48, 91192 Gif-sur-Yvette Cedex, France., Amzallag E; ICMMO/SP2M, UMR 8182, Université Paris-Saclay, Bat. 670 Avenue des Sciences, 91400 Orsay-F, France., Verseils M; L'Orme des Merisiers, Synchrotron SOLEIL, Saint-Aubin BP 48, 91192 Gif-sur-Yvette Cedex, France., Hemme P; L'Orme des Merisiers, Synchrotron SOLEIL, Saint-Aubin BP 48, 91192 Gif-sur-Yvette Cedex, France., Brubach JB; L'Orme des Merisiers, Synchrotron SOLEIL, Saint-Aubin BP 48, 91192 Gif-sur-Yvette Cedex, France., Infante IC; Institut des Nanotechnologies de Lyon, CNRS UMR5270 ECL INSA UCBL CPE, 69621 Villeurbanne Cedex, France., Segantini G; Université de Lyon, Institut des Nanotechnologies de Lyon (UMR5270/CNRS), Ecole Centrale de Lyon, 36 Avenue Guy de Collongue, F-69134 Ecully Cedex, France., Rojo Romeo P; Université de Lyon, Institut des Nanotechnologies de Lyon (UMR5270/CNRS), Ecole Centrale de Lyon, 36 Avenue Guy de Collongue, F-69134 Ecully Cedex, France., Coati A; L'Orme des Merisiers, Synchrotron SOLEIL, Saint-Aubin BP 48, 91192 Gif-sur-Yvette Cedex, France., Vlad A; L'Orme des Merisiers, Synchrotron SOLEIL, Saint-Aubin BP 48, 91192 Gif-sur-Yvette Cedex, France., Garreau Y; L'Orme des Merisiers, Synchrotron SOLEIL, Saint-Aubin BP 48, 91192 Gif-sur-Yvette Cedex, France., Resta A; L'Orme des Merisiers, Synchrotron SOLEIL, Saint-Aubin BP 48, 91192 Gif-sur-Yvette Cedex, France., Vilquin B; Université de Lyon, Institut des Nanotechnologies de Lyon (UMR5270/CNRS), Ecole Centrale de Lyon, 36 Avenue Guy de Collongue, F-69134 Ecully Cedex, France., Creuze J; ICMMO/SP2M, UMR 8182, Université Paris-Saclay, Bat. 670 Avenue des Sciences, 91400 Orsay-F, France., Roy P; L'Orme des Merisiers, Synchrotron SOLEIL, Saint-Aubin BP 48, 91192 Gif-sur-Yvette Cedex, France.

Publikováno v: ACS applied materials & interfaces [ACS Appl Mater Interfaces] 2024 Jan 24; Vol. 16 (3), pp. 3829-3840. Date of Electronic Publication: 2024 Jan 12.

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Infrared phonon spectroscopy on the Cairo pentagonal antiferromagnet Bi 2 Fe 4 O 9 : A study through the pressure-induced structural transition

Autor: Verseils, M., Litvinchuk, A. P., Brubach, J-B, Roy, P., Beauvois, K., Ressouche, E., Skumryev, V., Gospodinov, M., Simonet, V., deBrion, S.

Publikováno v: Physical Review B
Physical Review B, American Physical Society, 2021, 103 (17), pp.174403. ⟨10.1103/PhysRevB.103.174403⟩
Physical Review B, 2021, 103 (17), pp.174403. ⟨10.1103/PhysRevB.103.174403⟩

Magnetic and crystallographic transitions in the Cairo pentagonal magnet Bi2Fe4O9 are investigated by means of infrared synchrotron-based spectroscopy as a function of temperature (20 - 300 K) and pressure (0 - 15.5 GPa). One of the phonon modes is s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a17bd241e3c5a503c4cbca4a08db5cec
https://hal.archives-ouvertes.fr/hal-03381831