Výsledky vyhledávání - "Eric, Collet"

Akademický článek

Ultrafast and persistent photoinduced phase transition at room temperature monitored by streaming powder diffraction

Autor: Marius Hervé, Gaël Privault, Elzbieta Trzop, Shintaro Akagi, Yves Watier, Serhane Zerdane, Ievgeniia Chaban, Ricardo G. Torres Ramírez, Celine Mariette, Alix Volte, Marco Cammarata, Matteo Levantino, Hiroko Tokoro, Shin-ichi Ohkoshi, Eric Collet

Publikováno v: Nature Communications, Vol 15, Iss 1, Pp 1-10 (2024)

Abstract Ultrafast photoinduced phase transitions at room temperature, driven by a single laser shot and persisting long after stimuli, represent emerging routes for ultrafast control over materials’ properties. Time-resolved studies provide fundam

Externí odkaz: https://doaj.org/article/9fdf8131cb5447408c97cad1c6bba212

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Akademický článek

Coupled spin cross-over and ferroelasticity: revisiting the prototype [Fe(ptz)6](BF4)2 material

Autor: Eric Collet, Giovanni Azzolina, Jelena Jeftić, Marie-Hélène Lemée-Cailleau

Publikováno v: Advances in Physics: X, Vol 8, Iss 1 (2023)

ABSTRACTSpin-crossover (SCO) materials exhibit thermal conversion from low to high-spin states. We review different models developed to describe this entropy-driven process and the occurrence of cooperative conversions resulting from elastic interact

Externí odkaz: https://doaj.org/article/cb9a629e48824a8d8b294d6fed4516f9

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Akademický článek

Dynamical limits for the molecular switching in a photoexcited material revealed by X-ray diffraction

Autor: Alix Volte, Celine Mariette, Roman Bertoni, Marco Cammarata, Xu Dong, Elzbieta Trzop, Herve Cailleau, Eric Collet, Matteo Levantino, Michael Wulff, Jacek Kubicki, Feng-Lei Yang, Marie-Laure Boillot, Benoit Corraze, Laurentiu Stoleriu, Cristian Enachescu, Maciej Lorenc

Publikováno v: Communications Physics, Vol 5, Iss 1, Pp 1-9 (2022)

Ultrafast methods have the ability to transiently decouple transitions between subsystems that evolve simultaneously at thermal equilibrium. Here, time-resolved X-ray diffraction reveals a time delay between volumetric and spin-state switching in a s

Externí odkaz: https://doaj.org/article/f54c72557c4c4e1fbed5ca4482ff8120

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Akademický článek

Decoupling anion-ordering and spin-Peierls transitions in a strongly one-dimensional organic conductor with a chessboard structure, (o-Me2TTF)2NO3

Autor: Olivier Jeannin, Eric W. Reinheimer, Pascale Foury-Leylekian, Jean-Paul Pouget, Pascale Auban-Senzier, Elzbieta Trzop, Eric Collet, Marc Fourmigué

Publikováno v: IUCrJ, Vol 5, Iss 3, Pp 361-372 (2018)

A mixed-valence conducting cation radical salt of the unsymmetrically substituted o-Me2TTF donor molecule (TTF is tetrathiafulvalene) was obtained upon electrocrystallization in the presence of the non-centrosymmetric NO3− anion. It crystallizes at

Externí odkaz: https://doaj.org/article/e2a3c8c3be17488ca505d465bdc59024

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Akademický článek

Coherent structural trapping through wave packet dispersion during photoinduced spin state switching

Autor: Henrik T. Lemke, Kasper S. Kjær, Robert Hartsock, Tim B. van Driel, Matthieu Chollet, James M. Glownia, Sanghoon Song, Diling Zhu, Elisabetta Pace, Samir F. Matar, Martin M. Nielsen, Maurizio Benfatto, Kelly J. Gaffney, Eric Collet, Marco Cammarata

Publikováno v: Nature Communications, Vol 8, Iss 1, Pp 1-8 (2017)

Ultrafast nonadiabatic chemical dynamics during molecular photo-transformations remain challenging to describe since electronic/nuclear configurations are coupled. Here the authors use time-resolved X-ray absorption spectroscopy to probe the light-in

Externí odkaz: https://doaj.org/article/f550e3664db64b8489fa20caa1ce88e4

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