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Eric Collet

14
Documents

Présentation

### Eric Collet, ### professor of Physics ### The Institute of Physics of Rennes, mixed research unit [CNRS ](http://blogperso.univ-rennes1.fr/eric.collet/www.cnrs.fr/)- [University Rennes 1](http://www.univ-rennes1.fr/). **I develop research projects around photoinduced phase transitions and the photo-control of materials on ultra-short time-scales. In the lab, we are performing structural studies (x-ray diffraction and photo-crystallography) and we combine femtosecond optical experiments to ultrafast x-ray studies performed on synchrotron and X-FEL.**
### Eric Collet, ### professor of Physics ### The Institute of Physics of Rennes, mixed research unit [CNRS ](http://blogperso.univ-rennes1.fr/eric.collet/www.cnrs.fr/)- [University Rennes 1](http://www.univ-rennes1.fr/). **I develop research projects around photoinduced phase transitions and the photo-control of materials on ultra-short time-scales. In the lab, we are performing structural studies (x-ray diffraction and photo-crystallography) and we combine femtosecond optical experiments to ultrafast x-ray studies performed on synchrotron and X-FEL.**

Publications

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

Eric Collet , Giovanni Azzolina , Jelena Jeftić , Marie-Hélène Lemée-Cailleau
Advances in Physics: X, 2023, 8 (1), pp.2161936. ⟨10.1080/23746149.2022.2161936⟩
Article dans une revue hal-03969207v1

Exploring Ultrafast Photoswitching Pathways in RbMnFe Prussian Blue Analogue

Giovanni Azzolina , Hiroko Tokoro , Kenta Imoto , Marie Yoshikiyo , Shin-Ichi Ohkoshi
Angewandte Chemie International Edition, 2021, 60 (43), pp.23267-23273. ⟨10.1002/anie.202106959⟩
Article dans une revue hal-03330845v1
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Charge-transfer driven by ultrafast spin-transition in a CoFe Prussian blue analogue

Marco Cammarata , Serhane Zerdane , Lodovico Balducci , Giovanni Azzolina , Sandra Mazerat
Nature Chemistry, 2021, 13 (1), pp.10-14. ⟨10.1038/s41557-020-00597-8⟩
Article dans une revue hal-02996531v1
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General Landau theory of non-symmetry-breaking and symmetry-breaking spin transition materials

Giovanni Azzolina , Roman Bertoni , Eric Collet
Journal of Applied Physics, 2021, 129 (8), pp.085106. ⟨10.1063/5.0041453⟩
Article dans une revue hal-03157211v1

Coupling and decoupling of spin crossover and ferroelastic distortion: Unsymmetric hysteresis loop, phase diagram, and sequence of phases

Eric Collet , Giovanni Azzolina
Physical Review Materials, 2021, 5 (4), pp.044401. ⟨10.1103/PhysRevMaterials.5.044401⟩
Article dans une revue hal-03249380v1

Out-of-equilibrium lattice response to photo-induced charge-transfer in a MnFe Prussian blue analogue

Giovanni Azzolina , Roman Bertoni , Céline Mariette , Marco Cammarata , Elzbieta Trzop
Journal of Materials Chemistry C, 2021, 9 (21), pp.6773-6780. ⟨10.1039/d1tc01487k⟩
Article dans une revue hal-03244969v1
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Landau Theory for Non-Symmetry-Breaking Electronic Instability Coupled to Symmetry-Breaking Applied to Prussian Blue Analogue

Giovanni Azzolina , Roman Bertoni , Claude Ecolivet , Hiroko Tokoro , Shin-Ichi Ohkoshi
Physical Review B, 2020, 102 (13), ⟨10.1103/PhysRevB.102.134104⟩
Article dans une revue hal-02964126v1
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Lattice phonon modes of the spin crossover crystal [Fe(phen)2(NCS)2] studied by THz, IR, Raman spectroscopies and DFT calculations

Eric Collet , Giovanni Azzolina , Tomoaki Ichii , Laurent Guérin , Roman Bertoni
The European Physical Journal B: Condensed Matter and Complex Systems, 2019, 92 (1), pp.12. ⟨10.1140/epjb/e2018-90553-2⟩
Article dans une revue hal-01982843v1
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Single laser shot photoinduced phase transition of rubidium manganese hexacyanoferrate investigated by X-ray diffraction

Giovanni Azzolina , Eric Collet , Céline Mariette , Marco Cammarata , Elzbieta Trzop
European Journal of Inorganic Chemistry, 2019, 2019 (27), pp.3142-3147. ⟨10.1002/ejic.201801478⟩
Article dans une revue hal-02017137v1

Making ultrafast phase transition movie with streaming crystallography and femtosecond XANES in Prussian blue analogues

Eric Collet , Giovanni Azzolina , Roman Bertoni , Céline Mariette , Marco Cammarata
33th European Crystallographic Meeting, Aug 2022, Versailles, France
Communication dans un congrès hal-03721048v1

Photoinduced charge-transfer in Prussian blue analogues: from local self-trapping to macroscopic phase transition

Eric Collet , Giovanni Azzolina , Serhane Zerdane , Marius Hervé , Gaël Privault
PIPT7: Photoinduced Phase Transitions and Cooperative Phenomena, Nov 2021, Santa Fee, United States
Communication dans un congrès hal-03721035v1

Spin crossover, charge transfer, radical dimerization and symmetry breaking: BREAKING: unsymmetric hysteresis loop and sequence of phases

Eric Collet , Giovanni Azzolina , Roman Bertoni
2BSwitch 2021 Symposium, Aug 2021, Bayreuth, Germany
Communication dans un congrès hal-03720895v1

Decoupling with X-FEL electronic and structural dynamics for understanding the emergence of functions in photomagnetic materials

Eric Collet , Giovanni Azzolina , Serhane Zerdane , Marius Hervé , Gaël Privault
Pacifichem, Dec 2021, Honolulu, United States
Communication dans un congrès hal-03721034v1

Sonder la structure et la dynamique de matériaux fonctionnels à l'échelle femtoseconde avec les X-FEL

Eric Collet , Marco Cammarata , Céline Mariette , Maciej Lorenc , Roman Bertoni
Science autour des FEL-XFEL, Dec 2020, Paris, France
Communication dans un congrès hal-03720876v1