Abstract
The neutron pair distribution function (PDF) of ${\mathrm{Rb}}_{3}$${\mathrm{C}}_{60}$ at 10 K reveals local deviations from the Stephens model of merohedral disorder. The experimental PDF in the 3--7 \AA{} range is best represented by a greater fraction of near-neighbor pairs with opposite standard orientations than would be expected from purely random decoration, indicating the presence of short-range ``antiferromagnetic'' orientational correlations.
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