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Measurement of interfacial thermal resistance in high-energy-density matter

Author

Listed:
  • Cameron H. Allen

    (University of Nevada
    Los Alamos National Laboratory)

  • Matthew Oliver

    (University of Nevada
    STFC Rutherford-Appleton Laboratory)

  • Dirk O. Gericke

    (University of Warwick)

  • Nils Brouwer

    (Holzkoppel 4)

  • Laurent Divol

    (Lawrence Livermore National Laboratory)

  • Gregory E. Kemp

    (Lawrence Livermore National Laboratory)

  • Otto L. Landen

    (Lawrence Livermore National Laboratory)

  • Landon Morrison

    (University of Nevada)

  • Yuan Ping

    (Lawrence Livermore National Laboratory)

  • Markus O. Schölmerich

    (Lawrence Livermore National Laboratory
    Paul Scherrer Institut)

  • Nathaniel Shaffer

    (University of Rochester)

  • Christopher Spindloe

    (STFC Rutherford-Appleton Laboratory)

  • Philip A. Sterne

    (Lawrence Livermore National Laboratory)

  • Wolfgang R. Theobald

    (University of Rochester)

  • Tilo Döppner

    (Lawrence Livermore National Laboratory)

  • Thomas G. White

    (University of Nevada)

Abstract

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.

Suggested Citation

  • Cameron H. Allen & Matthew Oliver & Dirk O. Gericke & Nils Brouwer & Laurent Divol & Gregory E. Kemp & Otto L. Landen & Landon Morrison & Yuan Ping & Markus O. Schölmerich & Nathaniel Shaffer & Christ, 2025. "Measurement of interfacial thermal resistance in high-energy-density matter," Nature Communications, Nature, vol. 16(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:16:y:2025:i:1:d:10.1038_s41467-025-56051-1
    DOI: 10.1038/s41467-025-56051-1
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