Picosecond anisotropic phase separation governing photoinduced phase stability in submicron Ti3O5 crystals
Abstract Recently developed ceramic material Ti 3 O 5 exhibits fascinating application properties, from ultrafast switching between metallic and insulating phases to light-to-heat conversion and storage. While the states conferring such properties are not spatially homogeneous, the origin of phase separation and the link between the phase coexistence and dynamics, key for stability of such states, is still little known. In this work, we use time-resolved X-ray diffraction and numerical simulations to establish rules by which the dynamics of heat-driven transition in laser excited Ti 3 O 5 crystallites occur in space and time. The studies are conducted on submicron Ti 3 O 5 crystallites and span a broad timescale allowing separation of phase change regimes. Our results reveal the influence of nanoscopic morphology on the mechanism of macroscopic transformation triggered by laser excitation.
Authors
- Hiroko Tokoro (ORCID: https://orcid.org/0000-0002-3431-0643)
- Marco Cammarata (ORCID: https://orcid.org/0000-0003-3013-1186)
- Cristian Enachescu (ORCID: https://orcid.org/0000-0001-5173-5451)
- Céline Mariette (ORCID: https://orcid.org/0000-0001-8067-9591)
- Florian Banhart (ORCID: https://orcid.org/0000-0001-5911-9418)
- Matteo Levantino (ORCID: https://orcid.org/0000-0002-1224-4809)
- Étienne Janod (ORCID: https://orcid.org/0000-0002-2430-9542)
- Shin‐ichi Ohkoshi (ORCID: https://orcid.org/0000-0001-9359-5928)
- Guénolé Huitric (ORCID: https://orcid.org/0000-0001-8416-1079)
- Laurenţiu Stoleriu (ORCID: https://orcid.org/0000-0002-5681-579X)
- Maciej Lorenc (ORCID: https://orcid.org/0000-0002-6877-8631)
- Laurent Cario (ORCID: https://orcid.org/0000-0001-5720-4395)
- Serhane Zerdane (ORCID: https://orcid.org/0000-0003-3103-3502)
- Elżbieta Trzop (ORCID: https://orcid.org/0000-0003-1998-1825)
- V. Ta Phuoc
- Marina Servol
- Ritwika Mandal
- H. Cailleau
Institutions
- Université de Tours (FR)
- Centre National de la Recherche Scientifique (FR)
- Alexandru Ioan Cuza University (RO)
- École Polytechnique (FR)
- University of Tsukuba (JP)
- Commissariat à l'Énergie Atomique et aux Énergies Alternatives (FR)
- European Synchrotron Radiation Facility (FR)
- Paul Scherrer Institute (CH)
- Institut des Matériaux Jean Rouxel (FR)
- Institut de Physique de Rennes (FR)
- Institut de Physique et Chimie des Matériaux de Strasbourg (FR)
- Dynamic Systems (United States) (US)
- Université de Rennes (FR)
- The University of Tokyo (JP)
- Nantes Université (FR)
Publication Details
- Journal
- Communications Materials
- Published
- 2025-09-29
- DOI
- https://doi.org/10.1038/s43246-025-00896-y
- Citations
- 1
- Primary Topic
- Phase-change materials and chalcogenides
- Type
- article
- Field-Weighted Citation Impact
- 0.52
Funders
- Agence Nationale de la Recherche
- European Synchrotron Radiation Facility
- Ministry of Education, Culture, Sports, Science and Technology
- Centre National de la Recherche Scientifique
- Japan Society for the Promotion of Science