Workshop on Investigations of Higher Order Correlation Functions
J. Phys. Colloques 46 (1985) C9-63-C9-68
DOI: 10.1051/jphyscol:1985907
MEASUREMENT OF AN ATOMIC POSITION COHERENCE LENGTH IN a-Ge
J.M. RodenburgCavendish Laboratory, Madingley Road, Cambridge, CB3 OHE, U.K.
Abstract
A scanning transmission electron microscope (STEM) has been used to obtain microdiffraction patterns from small volumes (3 - 650 nm3) of a-Ge. These are recorded on new high-resolution, high-efficiency instrumentation. It appears as if the reciprocal space of even comparatively large volumes (30 thousand atoms) contains statistically significant, spherically anisotropic fluctuations.