Abstract
Extended fine structure, equivalent to extended x-ray-absorption fine structure, has been observed on carbon -ionization edges obtained with electron energy-loss spectroscopy utilizing 0.75- to 5-nm radius probe sizes, and sampling as few as atoms in times as short as 4 min. Radial distribution functions show the expected behavior for graphite and an amorphous carbon sample. A second "amorphous" sample, however, shows structure which suggests the existence of local tetrahedral coordination.
- Received 4 October 1978
DOI:https://doi.org/10.1103/PhysRevLett.42.893
©1979 American Physical Society