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Science 27 April 1990:
Vol. 248. no. 4954, pp. 462 - 465
DOI: 10.1126/science.248.4954.462
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Articles

Ultrahigh-Pressure Melting of Lead: A Multidisciplinary Study

B. K. Godwal 1, Charles Meade 1, Raymond Jeanloz 1, Alberto Garcia 2, Amy Y. Liu 2, and Marvin L. Cohen 3

1 Department of Geology and Geophysics, University of California, Berkeley, CA 94720
2 Department of Physics, University of California, Berkeley, CA 94720
3 Materials and Chemical Sciences Division, Lawrence Berkeley Laboratory, Berkeley, CA 94720

Measurements of the melting temperature of lead, carried out to pressures of 1 megabar (1011 pascal) and temperatures near 4000 kelvin by means of a laser-heated diamond cell, are in excellent agreement with the results of previous shock-wave experiments. The data are analyzed by means of first principles quantum mechanical calculations, and the agreement documents the reliability of current experimental and theoretical techniques for studies of melting at ultrahigh pressures. These studies have potentially wide-ranging applications, from planetary science to condensed matter physics.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
High-Temperature Phase Transition and Dissociation of (Mg, Fe)SiO3 Perovskite at Lower Mantle Pressures.
C. Meade, C. Meade, H. K. Mao, and J. Hu (1995)
Science 268, 1743-1745
   Abstract »    PDF »
High-Pressure Melting of (Mg,Fe)SiO3-Perovskite.
D. L. Heinz, D. L. Heinz, E. Knittle, J. S. Sweeney, Q. Williams, and R. Jeanloz (1994)
Science 264, 279-280
   PDF »


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