Direct measurement of thermal conductivity in solid iron at planetary core conditions

Zuzana Konôpková (), R. Stewart McWilliams (), Natalia Gómez-Pérez () and Alexander F. Goncharov ()
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Zuzana Konôpková: DESY Photon Science
R. Stewart McWilliams: School of Physics and Astronomy and Centre for Science at Extreme Conditions, University of Edinburgh
Natalia Gómez-Pérez: School of Physics and Astronomy and Centre for Science at Extreme Conditions, University of Edinburgh
Alexander F. Goncharov: Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences

Nature, 2016, vol. 534, issue 7605, 99-101

Abstract: The thermal conductivity of solid iron at the pressure and temperature conditions that prevail in the cores of planets is measured directly using a dynamically laser-heated diamond-anvil cell, yielding values that support findings from ancient magnetized rocks that suggest Earth’s magnetic field has persisted since the Earth’s earliest history.

Date: 2016
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DOI: 10.1038/nature18009

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