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Science 31 May 1991:
Vol. 252. no. 5010, pp. 1288 - 1290
DOI: 10.1126/science.252.5010.1288
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Articles

Compressibility of Solid C60

JOHN E. FISCHER 1, PAUL A. HEINEY 2, ANDREW R. MCGHIE 3, WILLIAM J. ROMANOW 3, ARNOLD M. DENENSTEIN 2, JOHN P. MCCAULEY JR. 4, and AMOS B. SMITH III 4

1 Laboratory for Research on the Structure of Matter and Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, PA 19104
2 Laboratory for Research on the Structure of Matter and Department of Physics, University of Pennsylvania, Philadelphia, PA 19104
3 Laboratory for Research on the Structure of Matter, University of Pennsylvania, Philadelphia, PA 19104
4 Laboratory for Research on the Structure of Matter and Department of Chemistry, University of Pennsylvania, Philadelphia, PA 19104

correspondence should be addressed at the Department of Materials Science and Engineering

Room-temperature powder x-ray diffraction profiles have been obtained at hydrostatic pressures P = 0 and 1.2 gigapascals on the solid phase of cubic C60 ("fullerite"). Within experimental error, the linear compressibility d(ln a)/dP is the same as the interlayer compressibility d(ln c)/dP of hexagonal graphite, consistent with van der Waals intermolecular bonding. The volume compressibility –d(ln V)/dP is 7.0 ± 1 x 10-12 square centimeter per dyne, 3 and 40 times the values for graphite and diamond, respectively.

Submitted on March 18, 1991
Accepted on April 18, 1991


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
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