Abstract
We use variable coherence transmission electron microscopy to examine medium-range ordering in vacuum-deposited amorphous germanium. The method accesses higher-order atomic correlations through statistical analysis of hollow-cone dark-field image speckle. This yields greater sensitivity to medium-range order than the familiar pair correlation function obtained from diffraction. We find that thermal annealing of amorphous germanium reduces the degree of medium-range order, affirming the thermodynamic stability of the random network.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1074-1077 |
| Number of pages | 4 |
| Journal | Physical Review Letters |
| Volume | 78 |
| Issue number | 6 |
| DOIs | |
| State | Published - Feb 10 1997 |
| Externally published | Yes |
ASJC Scopus subject areas
- Physics and Astronomy(all)