Phonons in the multiferroic langasite Ba$\_3$NbFe$\_3$Si$\_2$O$\_{14}$ : evidences for symmetry breaking

Autor: Toulouse, C, Cazayous, M, De Brion, S, Levy-Bertrand, F, Barkaoui, H, Lejay, P, Chaix, L, Lepetit, M. B., Brubach, J. B., Roy, P

The chiral langasite Ba$\_3$NbFe$\_3$Si$\_2$O$\_{14}$ is a multiferroic compound. While its magnetic order below T$\_N$=27 K is now well characterised, its polar order is still controversial. We thus looked at the phonon spectrum and its temperature

Externí odkaz: http://arxiv.org/abs/1508.06090

Home Health Care vulnerability assessment using graph theory and matrix methods

Autor: Barkaoui, H. ^*, Guinet, A. ^*, Wang, T. ^*

Publikováno v: In IFAC PapersOnLine July 2017 50(1):4623-4629

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Phonons in the multiferroic langasite Ba3NbFe3Si2O14 : evidences for symmetry breaking

Autor: Toulouse, C., Cazayous, M., De Brion, Sophie, Lévy-Bertrand, Florence, Barkaoui, H., Lejay, Pascal, Chaix, Laura, Lepetit, Marie-Bernadette, Brubach, J. B., Roy, Pascal

Publikováno v: Physical Review B : Condensed matter and materials physics
Physical Review B : Condensed matter and materials physics, American Physical Society, 2015, 92 (10), pp.104302. ⟨10.1103/PhysRevB.92.104302⟩
Physical Review B: Condensed Matter and Materials Physics (1998-2015)
Physical Review B: Condensed Matter and Materials Physics (1998-2015), American Physical Society, 2015, 92 (10), pp.104302. ⟨10.1103/PhysRevB.92.104302⟩

International audience; The chiral langasite Ba$_3$NbFe$_3$Si$_2$O$_{14}$ is a multiferroic compound. While its magnetic order below T$_N$=27 K is now well characterised, its polar order is still controversial. We thus looked at the phonon spectrum a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::38f23bf2a4a636c534a19f4c7ef54fbc
https://hal.archives-ouvertes.fr/hal-01186067