Measurement of interfacial thermal resistance in high-energy-density matter
Heat transport across interfaces is a ubiquitous phenomenon with many unresolved aspects. In particular, it is unknown if an interfacial thermal resistance (ITR) occurs in matter with high-energy-density where free electrons dominate the heat conduction. Here, we report on the first experimental evidence that a significant heat barrier is present between two different regions of high-energy-density matter: a strongly heated tungsten wire and a surrounding plastic layer that stays relatively cold. We use diffraction-enhanced imaging to track the time evolution of density discontinuities and reconstruct the temperature evolution in the quasi-stationary stage. The clear signatures of a temperature jump demonstrate the importance of the ITR for strongly heated systems with far-reaching implications for interpreting experiments and applications like inertial confinement fusion.
Authors
- M. Oliver
- L. Divol (ORCID: https://orcid.org/0000-0002-6969-9898)
- O. L. Landen (ORCID: https://orcid.org/0000-0002-1499-8217)
- T. Döppner (ORCID: https://orcid.org/0000-0002-5703-7125)
- Landon Morrison
- C. Spindloe (ORCID: https://orcid.org/0000-0002-6648-7400)
- P. A. Sterne (ORCID: https://orcid.org/0000-0002-6398-3185)
- D. O. Gericke (ORCID: https://orcid.org/0000-0001-6797-9004)
- G. E. Kemp (ORCID: https://orcid.org/0000-0002-3825-3666)
- Nils Brouwer
- Thomas G. White (ORCID: https://orcid.org/0000-0002-3865-4240)
- Nathaniel R. Shaffer (ORCID: https://orcid.org/0000-0002-0710-0026)
- W. Theobald (ORCID: https://orcid.org/0000-0003-0414-9999)
- Y. Ping (ORCID: https://orcid.org/0000-0002-4879-9072)
- Cameron H. Allen
- M. O. Schölmerich
Institutions
- Lawrence Livermore National Laboratory (US)
- Rutherford Appleton Laboratory (GB)
- University of Nevada, Reno (US)
- Los Alamos National Laboratory (US)
- Paul Scherrer Institute (CH)
- University of Warwick (GB)
- Energetics (United States) (US)
- Los Alamos National Security (United States) (US)
- University of Rochester (US)
- European X-Ray Free-Electron Laser (DE)
Publication Details
- Journal
- Nature Communications
- Published
- 2025-02-26
- DOI
- https://doi.org/10.1038/s41467-025-56051-1
- Citations
- 5
- Primary Topic
- High-pressure geophysics and materials
- Type
- article
- Field-Weighted Citation Impact
- 9.33
Funders
- National Science Foundation
- U.S. Department of Energy
- University of Rochester
- National Nuclear Security Administration
- Laboratory Directed Research and Development
- Lawrence Livermore National Laboratory
- Los Alamos National Laboratory