Zobrazeno 1 - 10
of 77
pro vyhledávání: '"HEHLEN, Bernard"'
Atomic vibrations in perfect, slightly defective or mixed crystals are to a large extent well understood since many decades. Theoretical descriptions are thus in excellent agreement with the experiments. As a consequence, phonon-related properties li
Externí odkaz:
http://arxiv.org/abs/2101.03782
Publikováno v:
Phys. Rev. B 99, 054209 (2019)
The vibrational properties of three sodosilicate glasses have been investigated in the framework of Density Functional Theory. The pure vibrational density of states has been calculated for all systems and the different vibrational modes have been as
Externí odkaz:
http://arxiv.org/abs/1811.12697
Publikováno v:
In Solid State Communications 15 December 2022 358
Autor:
Al-Zein, Ali, Dammak, Hichem, Papet, Philippe, Mathon, Olivier, Hehlen, Bernard, Levelut, Claire, Haines, Julien, Rouquette, Jerome
Publikováno v:
Inorganic Chemistry, American Chemical Society, 2014, 53 (8), pp.3985
Relaxor ferroelectric perovskites are highly polarizable and can exhibit giant coupling between elastic strain and an applied electric field. Here, we report an in situ extended X-ray absorption fine structure (EXAFS) study of a PbZn1/3Nb2/3O3 (PZN)
Externí odkaz:
http://arxiv.org/abs/1412.3536
Autor:
Even, Jacky, Hehlen, Bernard, Bourges, Philippe, Rufflé, Benoit, Létoublon, Antoine, Zacharias, Marios, Katan, Claudine
Publikováno v:
International Conference on Emerging Light Emitting Materials (EMLEM 2022)
International Conference on Emerging Light Emitting Materials (EMLEM 2022), Oct 2022, Limassol, Cyprus
International Conference on Emerging Light Emitting Materials (EMLEM 2022), Oct 2022, Limassol, Cyprus
International audience; 3D halide perovskites used in light emitters and PV systems exhibit an unusual anharmonicity, which is not accounted for in nowadays descriptions of phonons and electron-phonon coupling. Therefore, the low frequency lattice vi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2bbbb7ceb2253ad8cb434d9ee0be4c2a
https://hal.science/hal-03949021
https://hal.science/hal-03949021
Autor:
Even, Jacky, Hehlen, Bernard, Bourges, Philippe, Létoublon, Antoine, Rufflé, Benoit, Ecolivet, Claude, Katan, Claudine
Publikováno v:
Electron and phonon dynamics in soft optoelectronic materials
Electron and phonon dynamics in soft optoelectronic materials, Technical University of Munich-Institute for Advanced Study, Sep 2022, Munich, Germany
Electron and phonon dynamics in soft optoelectronic materials, Technical University of Munich-Institute for Advanced Study, Sep 2022, Munich, Germany
International audience; Lattice dynamics in 3D lead halide hybrid perovskites is analyzed together with the possible consequences for device applications
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::3758e46c4f183d92067cac1c1a5be912
https://hal.science/hal-03948056
https://hal.science/hal-03948056
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.
Autor:
Even, Jacky, Hehlen, Bernard, Bourges, Philippe, Ruffle, Benoit, Katan, Claudine, Létoublon, Antoine
Publikováno v:
Nanoge HPATOM2
Nanoge HPATOM2, Feb 2022, online, France
Nanoge HPATOM2, Feb 2022, online, France
International audience; The low frequency lattice vibrations and relaxations are investigated in single crystals of the four 3Dhybrid organolead perovskites, MAPbBr3, FAPbBr3, MAPbI3, and FAPbI3, at the Brillouin zone centerusing Raman and Brillouin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f962531f6b794eaeafa086736978497f
https://hal.science/hal-03562709
https://hal.science/hal-03562709
Autor:
Even, Jacky, Da Cunha Ferreira, Afonso, Paofai, Serge, Létoublon, Antoine, Ollivier, Jacques, Raymond, stéphane, Sébastien, Clément, VIALLA, Remy, HEHLEN, Bernard, RUFFLE, Benoit, Cordier, Stéphane, Katan, Claudine, Bourges, Philippe
Publikováno v:
Journées de la diffusion neutronique
Journées de la diffusion neutronique, Sep 2021, grenoble, France
Journées de la diffusion neutronique, Sep 2021, grenoble, France
National audience
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::96eff4d9d17fcef7d248d99f1169847a
https://hal.science/hal-03366819
https://hal.science/hal-03366819
Autor:
Duval, Alexis, Moréac, Alain, Hehlen, Bernard, Inoubli, Farah, Florian, Pierre, Sarou-Kanian, Vincent, Massiot, Dominique, Houizot, Patrick, Rouxel, Tanguy
Publikováno v:
Journée des doctorants : PhDay 2021
Journée des doctorants : PhDay 2021, Nov 2021, Rennes, France
Journée des doctorants : PhDay 2021, Nov 2021, Rennes, France
National audience
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::b155ad807749dfd836d64fd29c2c30ab
https://hal.science/hal-03454123
https://hal.science/hal-03454123