Extended Fine Structure on the Carbon Core-Ionization Edge Obtained from Nanometer-Sized Areas with Electron-Energy-Loss Spectroscopy

P. E. Batson; A. J. Craven

doi:10.1103/PhysRevLett.42.893

Extended Fine Structure on the Carbon Core-Ionization Edge Obtained from Nanometer-Sized Areas with Electron-Energy-Loss Spectroscopy

P. E. Batson and A. J. Craven

Phys. Rev. Lett. 42, 893 – Published 2 April 1979

Abstract

Extended fine structure, equivalent to extended x-ray-absorption fine structure, has been observed on carbon $K$ -ionization edges obtained with electron energy-loss spectroscopy utilizing 0.75- to 5-nm radius probe sizes, and sampling as few as $10^{4}$ 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

Authors & Affiliations

P. E. Batson^*

Department of Natural Philosophy, University of Glasgow, Glasgow G12 8QQ, Scotland

A. J. Craven^†

Cavendish Laboratory, University of Cambridge, Cambridge CG3 0HE, England

^*Located at the Cavendish Laboratory, Cambridge CB3 0HE, England. Present address: IBM Thomas J. Watson Research Center, Yorktown Heights, N. Y. 10598.
^†Present address: Department of Natural Philosophy, University of Glasgow, Glasgow G12 8QQ, Scotland.