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Science 2 November 1979:
Vol. 206. no. 4418, pp. 599 - 600
DOI: 10.1126/science.206.4418.599
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Articles

Solid Electrolyte Behavior of NaMgF3: Geophysical Implications

M. O'KEEFFE 1 and J.-O. BOVIN 1

1 Chemistry Department, Arizona State University, Tempe 85281

In the solid state, NaMgF3 transforms smoothly with temperature into a solid electrolyte phase; the conductivity is 130 siemens per meter just below the melting point. The isostructural compound MgSiO3 should behave similarly under conditions obtaining in the earth's lower mantle, and so it is expected that the electrical conductivity in that region is ionic rather than electronic.

Submitted on April 30, 1979
Revised on June 18, 1979


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Effect of A-site cation radius on ordering of BX6 octahedra in (K,Na)MgF3 perovskite.
C. D. Martin, S. Chaudhuri, C. P. Grey, and J. B. Parise (2005)
American Mineralogist 90, 1522-1533
   Abstract »    Full Text »    PDF »
Crystal chemistry of NaMgF3 perovskite at high pressure and temperature.
J. Chen, H. Liu, C. D. Martin, J. B. Parise, and D. J. Weidner (2005)
American Mineralogist 90, 1534-1539
   Abstract »    Full Text »    PDF »


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