Zobrazeno 1 - 10
of 323
pro vyhledávání: '"Brubach, J."'
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
Autor:
Verseils, M., Litvinchuk, A. P., Brubach, J-B, Roy, P., Beauvois, K., Ressouche, E., Skumryev, V., Gospodinov, M., Simonet, V., deBrion, S.
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:
http://arxiv.org/abs/2104.09384
Akademický článek
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Autor:
Constable, E., Squires, A. D., Horvat, J., Lewis, R. A., Appadoo, D., Plathe, R., Roy, P., Brubach, J. -B., deBrion, S., Pimenov, A., Deng, G.
Publikováno v:
Phys. Rev. B 100, 184305 (2019)
The low energy lattice dynamics of the quasi-periodic spin-ladder cuprate Sr$_{14-x}$Ca$_x$Cu$_{24}$O$_{41}$ are investigated using terahertz frequency synchrotron radiation. A high density of low-lying optical excitations are present in the 1-3 THz
Externí odkaz:
http://arxiv.org/abs/1907.09739
Autor:
Fabreges, X., Petit, S., Brubach, J. B., Roy, P., Deutsch, M., Ivanov, A., Pinsard-Gaudart, L., Simonet, V., Ballou, R., de Brion, S.
Publikováno v:
Phys. Rev. B 100, 094437 (2019)
In the multiferroic hexagonal manganite HoMnO3, inelastic neutron scattering and synchrotron based THz spectroscopy have been used to investigate the spin waves associated to the Mn order together with Ho crystal field excitations. While the Mn order
Externí odkaz:
http://arxiv.org/abs/1903.03009
Autor:
Evain, C., Szwaj, C., Roussel, E., Rodriguez, J., Parquier, M. Le, Tordeux, M. -A., Ribeiro, F., Labat, M., Hubert, N., Brubach, J. -B., Roy, P., Bielawski, S.
Publikováno v:
Nature Physics (2019)
Spontaneous formation of spatial structures (patterns) occurs in various contexts, ranging from sand dunes and rogue wave formation, to traffic jams. These last decades, very practical reasons also led to studies of pattern formation in relativistic
Externí odkaz:
http://arxiv.org/abs/1810.11805
Autor:
Nucara, A., Corasaniti, M., Kalaboukhov, A., Ortolani, M., Falsetti, E., Sambri, A., Granozio, F. Miletto, Capitani, F., Brubach, J. -B., Roy, P., Schade, U., Calvani, P.
Publikováno v:
Phys. Rev. B 97, 155126 (2018)
We have used grazing-angle infrared spectroscopy to detect the Berreman effect (BE) in the quasi-two-dimensional electron system (q-2DES) which forms spontaneously at the interface between SrTiO$_{3}$ (STO) and a thin film of LaAlO$_3$ (LAO). From th
Externí odkaz:
http://arxiv.org/abs/1802.08181
Autor:
Demyk, K., Meny, C., Leroux, H., Depecker, C, Brubach, J. -B., Roy, P., Nayral, C., Ojo, W. -S.
Publikováno v:
A&A 606, A50 (2017)
To model the cold dust emission observed in the diffuse interstellar medium, in dense molecular clouds or in cold clumps that could eventually form new stars, it is mandatory to know the physical and spectroscopic properties of this dust and to under
Externí odkaz:
http://arxiv.org/abs/1706.09801
Autor:
Demyk, K., Meny, C., Lu, X. -H., Papatheodorou, G., Toplis, M. J., Leroux, H., Depecker, C., Brubach, J. -B., Roy, P., Nayral, C., Ojo, W. -S., Delpech, F., Paradis, D., Gromov, V.
Publikováno v:
A&A 600, A123 (2017)
A wealth of data from the Herschel and Planck satellites and now from ALMA, revealing cold dust thermal emission, is available for astronomical environments ranging from interstellar clouds, cold clumps, circumstellar envelops, and protoplanetary dis
Externí odkaz:
http://arxiv.org/abs/1701.07225
Autor:
Capitani, F., Langerome, B., Brubach, J. -B., Roy, P., Drozdov, A., Eremets, M. I., Nicol, E. J., Carbotte, J. P., Timusk, T.
The discovery of a superconducting phase in sulfur hydride under high pressure with a critical temperature above 200 K has provided a new impetus to the search for even higher $T_c$. Theory predicted and experiment confirmed that the phase involved i
Externí odkaz:
http://arxiv.org/abs/1612.06732