Temperature distribution in the laser‐heated diamond cell with external heating, and implications for the thermal conductivity of perovskite | Zendy

Li Xiaoyuan | Zendy; Manga Michael | Zendy; Nguyen Jeffrey H. | Zendy; Jeanloz Raymond | Zendy

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Temperature distribution in the laser‐heated diamond cell with external heating, and implications for the thermal conductivity of perovskite

Author(s) -

Li Xiaoyuan,

Manga Michael,

Nguyen Jeffrey H.,

Jeanloz Raymond

Publication year - 1996

Publication title -

geophysical research letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.007

H-Index - 273

eISSN - 1944-8007

pISSN - 0094-8276

DOI - 10.1029/96gl03648

Subject(s) - thermal conductivity , thermal conduction , materials science , diamond , laser , conductivity , perovskite (structure) , thermal , temperature gradient , condensed matter physics , thermodynamics , optics , composite material , chemistry , crystallography , physics , meteorology

Applying external heating reduces temperature gradients in the laser‐heated diamond cell by roughly a factor of two as the external temperature is raised by 300 K. A heat conduction model is presented which can account for most of the reduction. In addition, the temperature distribution measured in a (Mg 0.86 Fe 0.14 )SiO 3 perovskite sample at 56 GPa is compatible the expected inverse temperature‐dependence of thermal conductivity.

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