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Thermal and electrical conductivity of iron at Earth’s core conditions

Author

Listed:
  • Monica Pozzo

    (and Thomas Young Centre at UCL, UCL, Gower Street, London WC1E 6BT, UK)

  • Chris Davies

    (School of Earth and Environment, University of Leeds, Leeds LS2 9JT, UK)

  • David Gubbins

    (School of Earth and Environment, University of Leeds, Leeds LS2 9JT, UK
    Institute of Geophysics and Planetary Physics, Scripps Institution of Oceanography, University of California at San Diego, 9500 Gilman Drive no. 0225, La Jolla, California 92093-0225, USA)

  • Dario Alfè

    (and Thomas Young Centre at UCL, UCL, Gower Street, London WC1E 6BT, UK
    and London Centre for Nanotechnology, UCL, Gower Street, London WC1E 6BT, UK)

Abstract

First principles calculations of the thermal and electrical conductivities of liquid iron mixtures under Earth's core conditions suggest a relatively high adiabatic heat flux of 15 to16 terawatts at the core–mantle boundary, indicating that the top of the core must be thermally stratified.

Suggested Citation

  • Monica Pozzo & Chris Davies & David Gubbins & Dario Alfè, 2012. "Thermal and electrical conductivity of iron at Earth’s core conditions," Nature, Nature, vol. 485(7398), pages 355-358, May.
    • Handle: RePEc:nat:nature:v:485:y:2012:i:7398:d:10.1038_nature11031
    DOI: 10.1038/nature11031
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