Synchrotron x-ray study of orientational order in single crystal C60 at room temperature

P. C. Chow, X. Jiang, G. Reiter, P. Wochner, S. C. Moss, J. D. Axe, J. C. Hanson, R. K. McMullan, R. L. Meng, C. W. Chu

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121 Citations (Scopus)

Abstract

Synchrotron x-ray Bragg intensities from a C60 single crystal were used to evaluate the nonuniform atomic density distribution on a C60 sphere at 300 K. Coefficients of the symmetry-adapted spherical harmonics up to l=18 are required with a resulting density deficiency of 16% in 111 directions and four lobes of 10% excess about 110. The results are discussed in terms of an effective potential which a single C60 sees in the cubic field of its neighbors. Initial calculations give a maximum rotational potential barrier height of about 2kT or 600 K.

Original languageEnglish
Pages (from-to)2943-2946
Number of pages4
JournalPhysical review letters
Volume69
Issue number20
DOIs
Publication statusPublished - 1992

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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