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Abstract
We report the high-resolution electron Compton profiles of graphite along three main crystallographic directions of [101¯0], [112¯0], and [0001] by recording electron energy-loss spectra at a large momentum transfer using a transmission electron microscope. A significant anisotropy is observed. The experimental results are in good agreement with theoretical calculations that use the full-potential linearized augmented plane wave method based on the local-density approximation. Electron Compton scattering from solids (ECOSS) is shown to be a sensitive probe of the binding structure in a material. ECOSS should be considered as a viable technique to determine the electron momentum distribution in nano-materials because of its short recording time and high momentum resolution.
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