Abstract
It has long been recognised that spatial fluctuations in local order in disordered assemblies of particles can be probed using limited-volume diffraction measurements. These measurements have unique advantages over broad-beam diffraction experiments that isotropically average over many structural configurations and result in one-dimensional intensity curves, requiring modelling to interpret. Despite the advantages of limiting illumination to a low number of particle configurations, obtaining quantitative measurements of local order from such experiments remains a challenge. The effects on the diffraction pattern of changing the beam energy, lateral size, aberrations and coherence and the specimen thickness have only recently been clarified. We review theoretical and experimental efforts in this direction in the fields of both electron and x-ray diffraction and identify promising areas of future development.
Original language | English |
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Article number | 054046 |
Journal | Journal of Statistical Mechanics: Theory and Experiment |
Volume | 2016 |
Issue number | 5 |
DOIs | |
Publication status | Published - 2016 |
Keywords
- Disordered systems (experiments)
- Structural colloidal and polymer glasses (experiments)
- Structural glasses (experiments)
Equipment
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Australian Synchrotron
Office of the Vice-Provost (Research and Research Infrastructure)Facility/equipment: Facility
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Centre for Electron Microscopy (MCEM)
Flame Sorrell (Manager) & Peter Miller (Manager)
Office of the Vice-Provost (Research and Research Infrastructure)Facility/equipment: Facility