MEASUREMENT OF DEBYE-WALLER FACTORS BY ELECTRON PRECESSION

The electron precession technique was developed for the ab initio stru cture determination of unknown phases. However, in this paper we have explored the possibility of using precession to determine accurate val ues of the Debye-Waller factor. As a test of the technique, silicon, d iamond and chromium were studied and the results obtained compared wit h known values determined from other techniques. The agreement was fou nd to be excellent. The accuracy and simplicity of the technique makes it suited to many situations where the Debye-Waller factor needs to b e known accurately and with sub-micron spatial resolution. (C) 1998 El sevier Science B.V. All rights reserved.