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Retrieving modulation parameters from HRTEM images of modulated structures
- Source :
- Ultramicroscopy. 96:181-190
- Publication Year :
- 2003
- Publisher :
- Elsevier BV, 2003.
-
Abstract
- Quantitative high-resolution transmission electron microscopy (qHRTEM) is methodologically extended towards the assessment of occupationally and positionally modulated structures. For this purpose, iterative digital image matching has been combined with data processing within the Rietveld refinement code JANA2000. In this approach, the number of free parameters is kept low and rather complicated modulated structures become assessable by qHRTEM. The feasibility of the improved methodology is demonstrated for the 1D modulated structure of Ba(2)TiGe(2)O(8).
- Subjects :
- Data processing
Materials science
Matching (graph theory)
Rietveld refinement
business.industry
Analytical chemistry
Atomic and Molecular Physics, and Optics
Electronic, Optical and Magnetic Materials
Digital image
Optics
Modulation
High-resolution transmission electron microscopy
business
Instrumentation
Free parameter
Subjects
Details
- ISSN :
- 03043991
- Volume :
- 96
- Database :
- OpenAIRE
- Journal :
- Ultramicroscopy
- Accession number :
- edsair.doi.dedup.....0def4a1e14ce9de1f128f618c76fcd23