Maximum likelihood estimation of structure parameters from high resolution electron microscopy images. Part I: A theoretical framework

2005 ◽  
Vol 104 (2) ◽  
pp. 83-106 ◽  
Author(s):  
A.J. den Dekker ◽  
S. Van Aert ◽  
A. van den Bos ◽  
D. Van Dyck
Keyword(s):  
Electron Microscopy ◽  
Maximum Likelihood ◽  
High Resolution ◽  
Maximum Likelihood Estimation ◽  
Likelihood Estimation ◽  
High Resolution Electron Microscopy ◽  
Theoretical Framework ◽  
Structure Parameters ◽  
Resolution Electron ◽  
Microscopy Images

Local Structural Variations in Al72Ni20Co8 Decagonal Quasicrystals

2003 ◽  
Vol 805 ◽  
Author(s):  
Yanfa Yan ◽  
S. J. Pennycook
Keyword(s):  
Electron Microscopy ◽  
High Resolution ◽  
Total Energy ◽  
First Principles ◽  
Density Functional ◽  
High Resolution Electron Microscopy ◽  
Structural Variations ◽  
Decagonal Quasicrystals ◽  
Resolution Electron ◽  
Microscopy Images

ABSTRACTWe investigate local structural variations in Al72Ni20Co8 quasicrystals using first principles density-functional total-energy calculations. We find that local chemical fluctuation can cause large structural variations on the central rings of the 2-nm clusters. Such structure variations may result in ambiguities at the central rings in high-resolution electron microscopy images of Al72Ni20Co8 decagonal quasicrystals.

Sign in / Sign up

Export Citation Format

Share Document