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Volumn 107, Issue 10, 2010, Pages 4539-4543

Lattice thermal conductivity of MgO at conditions of Earth's interior

Author keywords

First principles; High pressure; Lower mantle; Phonon lifetime; Phonon transport theory

Indexed keywords

MAGNESIUM OXIDE;

EID: 77949501683     PISSN: 00278424     EISSN: 10916490     Source Type: Journal    
DOI: 10.1073/pnas.0907194107     Document Type: Article
Times cited : (155)

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    • The single mode excitation approximation simplies the full, self-consistent solution of phonon distribtuion numbers at a non-equilibrium steady state, which is a computationally formidable task for complex mineral sysmtes. It is also known that the single mode excitation approximation does not preserve the property of infinite thermal conductivity in the absence of Umklapp scattering processes (when temperature approaches to zero). However, this difference is expected to be small at high temperatures relevant to the Earth's hot interior.
    • The single mode excitation approximation simplies the full, self-consistent solution of phonon distribtuion numbers at a non-equilibrium steady state, which is a computationally formidable task for complex mineral sysmtes. It is also known that the single mode excitation approximation does not preserve the property of infinite thermal conductivity in the absence of Umklapp scattering processes (when temperature approaches to zero). However, this difference is expected to be small at high temperatures relevant to the Earth's hot interior.
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    • Scale aspects of heat transport in the diamond anvil cell, in spectroscopic modeling, and in Earth's mantle
    • accepted
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