Affordable Access

Publisher Website

Anomalous reflected images of objects on crystal surfaces in reflection electron microscopy

Authors
Journal
Ultramicroscopy
0304-3991
Publisher
Elsevier
Publication Date
Volume
25
Issue
4
Identifiers
DOI: 10.1016/0304-3991(88)90001-0
Disciplines
  • Musicology
  • Physics

Abstract

Abstract A gap observed sometimes between the direct and reflected images of foreign objects lying on atomically flat crystal surfaces is interpreted as taking place by an anomalous displacement of the reflected image, resulting from the displacement of electron trajectories at reflection. This displacement is shown to be of the same kind as those which have been observed in acoustics and optics at the threshold angle of total reflection, and have been interpreted as the result of rapid variation of the phase of the reflection coefficient with the angle of incidence. It is shown that the same kind of rapid phase variation occurs at Bragg reflection of the electron beam, and that the displacement estimated by using the dynamical theory of electron diffraction is of the same order of magnitude as the observed ones.

There are no comments yet on this publication. Be the first to share your thoughts.